Home / 113,761,873.20-170,642,809.80-112,628,132.40

Finding the Fourth Proportional to 113,761,873.20, 170,642,809.80 and 112,628,132.40

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Solution

The fourth proportional to 113,761,873.20, 170,642,809.80 and 112,628,132.40 is: 168,942,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,761,873.20 : 170,642,809.80 = 112,628,132.40 : x
  2. Step 2: Convert to fraction form
    113,761,873.20/170,642,809.80 = 112,628,132.40/x
  3. Step 3: Cross multiply
    113,761,873.20x = 170,642,809.80 × 112,628,132.40
  4. Step 4: Simplify right side
    113,761,873.20x = 19,219,180,975,262,420
  5. Step 5: Solve for x
    x = 19,219,180,975,262,420/113,761,873.20
  6. Step 6: Final answer
    x = 168,942,198.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.