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Finding the Fourth Proportional to 119,862.41, 165,472.31 and 87,560.76

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Solution

The fourth proportional to 119,862.41, 165,472.31 and 87,560.76 is: 120,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,862.41 : 165,472.31 = 87,560.76 : x
  2. Step 2: Convert to fraction form
    119,862.41/165,472.31 = 87,560.76/x
  3. Step 3: Cross multiply
    119,862.41x = 165,472.31 × 87,560.76
  4. Step 4: Simplify right side
    119,862.41x = 14,488,880,784.75
  5. Step 5: Solve for x
    x = 14,488,880,784.75/119,862.41
  6. Step 6: Final answer
    x = 120,879.28

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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.