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Finding the Fourth Proportional to 120,233.68, 165,925.12 and 66,522.51

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Solution

The fourth proportional to 120,233.68, 165,925.12 and 66,522.51 is: 91,802.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,233.68 : 165,925.12 = 66,522.51 : x
  2. Step 2: Convert to fraction form
    120,233.68/165,925.12 = 66,522.51/x
  3. Step 3: Cross multiply
    120,233.68x = 165,925.12 × 66,522.51
  4. Step 4: Simplify right side
    120,233.68x = 11,037,755,454.45
  5. Step 5: Solve for x
    x = 11,037,755,454.45/120,233.68
  6. Step 6: Final answer
    x = 91,802.53

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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.