Home / 125,426.61-173,121.91-77,652.81

Finding the Fourth Proportional to 125,426.61, 173,121.91 and 77,652.81

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Solution

The fourth proportional to 125,426.61, 173,121.91 and 77,652.81 is: 107,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,426.61 : 173,121.91 = 77,652.81 : x
  2. Step 2: Convert to fraction form
    125,426.61/173,121.91 = 77,652.81/x
  3. Step 3: Cross multiply
    125,426.61x = 173,121.91 × 77,652.81
  4. Step 4: Simplify right side
    125,426.61x = 13,443,402,589.94
  5. Step 5: Solve for x
    x = 13,443,402,589.94/125,426.61
  6. Step 6: Final answer
    x = 107,181.42

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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.