Home / 125,713.27-173,490.54-77,982.00

Finding the Fourth Proportional to 125,713.27, 173,490.54 and 77,982.00

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Solution

The fourth proportional to 125,713.27, 173,490.54 and 77,982.00 is: 107,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,713.27 : 173,490.54 = 77,982.00 : x
  2. Step 2: Convert to fraction form
    125,713.27/173,490.54 = 77,982.00/x
  3. Step 3: Cross multiply
    125,713.27x = 173,490.54 × 77,982.00
  4. Step 4: Simplify right side
    125,713.27x = 13,529,138,932.12
  5. Step 5: Solve for x
    x = 13,529,138,932.12/125,713.27
  6. Step 6: Final answer
    x = 107,619.02

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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.