Home / 125,714.27-173,491.92-77,983

Finding the Fourth Proportional to 125,714.27, 173,491.92 and 77,983

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Solution

The fourth proportional to 125,714.27, 173,491.92 and 77,983 is: 107,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,714.27 : 173,491.92 = 77,983 : x
  2. Step 2: Convert to fraction form
    125,714.27/173,491.92 = 77,983/x
  3. Step 3: Cross multiply
    125,714.27x = 173,491.92 × 77,983
  4. Step 4: Simplify right side
    125,714.27x = 13,529,420,397.36
  5. Step 5: Solve for x
    x = 13,529,420,397.36/125,714.27
  6. Step 6: Final answer
    x = 107,620.40

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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.