Home / 156,158.66-215,499.44-84,538.50

Finding the Fourth Proportional to 156,158.66, 215,499.44 and 84,538.50

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Solution

The fourth proportional to 156,158.66, 215,499.44 and 84,538.50 is: 116,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,158.66 : 215,499.44 = 84,538.50 : x
  2. Step 2: Convert to fraction form
    156,158.66/215,499.44 = 84,538.50/x
  3. Step 3: Cross multiply
    156,158.66x = 215,499.44 × 84,538.50
  4. Step 4: Simplify right side
    156,158.66x = 18,217,998,985.75
  5. Step 5: Solve for x
    x = 18,217,998,985.75/156,158.66
  6. Step 6: Final answer
    x = 116,663.40

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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.