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Finding the Fourth Proportional to 125,491.95, 173,174.15 and 77,744.27

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Solution

The fourth proportional to 125,491.95, 173,174.15 and 77,744.27 is: 107,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,491.95 : 173,174.15 = 77,744.27 : x
  2. Step 2: Convert to fraction form
    125,491.95/173,174.15 = 77,744.27/x
  3. Step 3: Cross multiply
    125,491.95x = 173,174.15 × 77,744.27
  4. Step 4: Simplify right side
    125,491.95x = 13,463,298,501.92
  5. Step 5: Solve for x
    x = 13,463,298,501.92/125,491.95
  6. Step 6: Final answer
    x = 107,284.16

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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.