Home / 156,071.95-215,380.05-88,091.80

Finding the Fourth Proportional to 156,071.95, 215,380.05 and 88,091.80

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Solution

The fourth proportional to 156,071.95, 215,380.05 and 88,091.80 is: 121,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,071.95 : 215,380.05 = 88,091.80 : x
  2. Step 2: Convert to fraction form
    156,071.95/215,380.05 = 88,091.80/x
  3. Step 3: Cross multiply
    156,071.95x = 215,380.05 × 88,091.80
  4. Step 4: Simplify right side
    156,071.95x = 18,973,216,288.59
  5. Step 5: Solve for x
    x = 18,973,216,288.59/156,071.95
  6. Step 6: Final answer
    x = 121,567.11

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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.