Home / 142,326.43-196,411.25-77,795.76

Finding the Fourth Proportional to 142,326.43, 196,411.25 and 77,795.76

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Solution

The fourth proportional to 142,326.43, 196,411.25 and 77,795.76 is: 107,358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,326.43 : 196,411.25 = 77,795.76 : x
  2. Step 2: Convert to fraction form
    142,326.43/196,411.25 = 77,795.76/x
  3. Step 3: Cross multiply
    142,326.43x = 196,411.25 × 77,795.76
  4. Step 4: Simplify right side
    142,326.43x = 15,279,961,854.92
  5. Step 5: Solve for x
    x = 15,279,961,854.92/142,326.43
  6. Step 6: Final answer
    x = 107,358.57

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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.