Home / 112,271.40-168,415.20-67,802.40

Finding the Fourth Proportional to 112,271.40, 168,415.20 and 67,802.40

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Solution

The fourth proportional to 112,271.40, 168,415.20 and 67,802.40 is: 101,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,271.40 : 168,415.20 = 67,802.40 : x
  2. Step 2: Convert to fraction form
    112,271.40/168,415.20 = 67,802.40/x
  3. Step 3: Cross multiply
    112,271.40x = 168,415.20 × 67,802.40
  4. Step 4: Simplify right side
    112,271.40x = 11,418,954,756.48
  5. Step 5: Solve for x
    x = 11,418,954,756.48/112,271.40
  6. Step 6: Final answer
    x = 101,708.49

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1.5x scale

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.