Home / 156,242.95-215,555.82-115,504.90

Finding the Fourth Proportional to 156,242.95, 215,555.82 and 115,504.90

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Solution

The fourth proportional to 156,242.95, 215,555.82 and 115,504.90 is: 159,352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,242.95 : 215,555.82 = 115,504.90 : x
  2. Step 2: Convert to fraction form
    156,242.95/215,555.82 = 115,504.90/x
  3. Step 3: Cross multiply
    156,242.95x = 215,555.82 × 115,504.90
  4. Step 4: Simplify right side
    156,242.95x = 24,897,752,461.49
  5. Step 5: Solve for x
    x = 24,897,752,461.49/156,242.95
  6. Step 6: Final answer
    x = 159,352.81

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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.