Home / 104,123.97-143,690.40-56,377.17

Finding the Fourth Proportional to 104,123.97, 143,690.40 and 56,377.17

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Solution

The fourth proportional to 104,123.97, 143,690.40 and 56,377.17 is: 77,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,123.97 : 143,690.40 = 56,377.17 : x
  2. Step 2: Convert to fraction form
    104,123.97/143,690.40 = 56,377.17/x
  3. Step 3: Cross multiply
    104,123.97x = 143,690.40 × 56,377.17
  4. Step 4: Simplify right side
    104,123.97x = 8,100,858,108.17
  5. Step 5: Solve for x
    x = 8,100,858,108.17/104,123.97
  6. Step 6: Final answer
    x = 77,800.13

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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.