Home / 122,646.72-169,258.50-74,892.36

Finding the Fourth Proportional to 122,646.72, 169,258.50 and 74,892.36

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Solution

The fourth proportional to 122,646.72, 169,258.50 and 74,892.36 is: 103,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,646.72 : 169,258.50 = 74,892.36 : x
  2. Step 2: Convert to fraction form
    122,646.72/169,258.50 = 74,892.36/x
  3. Step 3: Cross multiply
    122,646.72x = 169,258.50 × 74,892.36
  4. Step 4: Simplify right side
    122,646.72x = 12,676,168,515.06
  5. Step 5: Solve for x
    x = 12,676,168,515.06/122,646.72
  6. Step 6: Final answer
    x = 103,355.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.