Home / 159,352.15-219,901.70-87,732.71

Finding the Fourth Proportional to 159,352.15, 219,901.70 and 87,732.71

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Solution

The fourth proportional to 159,352.15, 219,901.70 and 87,732.71 is: 121,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,352.15 : 219,901.70 = 87,732.71 : x
  2. Step 2: Convert to fraction form
    159,352.15/219,901.70 = 87,732.71/x
  3. Step 3: Cross multiply
    159,352.15x = 219,901.70 × 87,732.71
  4. Step 4: Simplify right side
    159,352.15x = 19,292,572,074.61
  5. Step 5: Solve for x
    x = 19,292,572,074.61/159,352.15
  6. Step 6: Final answer
    x = 121,068.79

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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.