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Finding the Fourth Proportional to 134,862.80, 202,350.90 and 72,460.40

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Solution

The fourth proportional to 134,862.80, 202,350.90 and 72,460.40 is: 108,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,862.80 : 202,350.90 = 72,460.40 : x
  2. Step 2: Convert to fraction form
    134,862.80/202,350.90 = 72,460.40/x
  3. Step 3: Cross multiply
    134,862.80x = 202,350.90 × 72,460.40
  4. Step 4: Simplify right side
    134,862.80x = 14,662,427,154.36
  5. Step 5: Solve for x
    x = 14,662,427,154.36/134,862.80
  6. Step 6: Final answer
    x = 108,721.06

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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.