Home / 112,309.40-168,386.07-42,169.88

Finding the Fourth Proportional to 112,309.40, 168,386.07 and 42,169.88

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Solution

The fourth proportional to 112,309.40, 168,386.07 and 42,169.88 is: 63,225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,309.40 : 168,386.07 = 42,169.88 : x
  2. Step 2: Convert to fraction form
    112,309.40/168,386.07 = 42,169.88/x
  3. Step 3: Cross multiply
    112,309.40x = 168,386.07 × 42,169.88
  4. Step 4: Simplify right side
    112,309.40x = 7,100,820,365.57
  5. Step 5: Solve for x
    x = 7,100,820,365.57/112,309.40
  6. Step 6: Final answer
    x = 63,225.52

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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.