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Finding the Fourth Proportional to 125,419.84, 173,078.50 and 68,057.71

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Solution

The fourth proportional to 125,419.84, 173,078.50 and 68,057.71 is: 93,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,419.84 : 173,078.50 = 68,057.71 : x
  2. Step 2: Convert to fraction form
    125,419.84/173,078.50 = 68,057.71/x
  3. Step 3: Cross multiply
    125,419.84x = 173,078.50 × 68,057.71
  4. Step 4: Simplify right side
    125,419.84x = 11,779,326,360.24
  5. Step 5: Solve for x
    x = 11,779,326,360.24/125,419.84
  6. Step 6: Final answer
    x = 93,919.16

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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.