Home / 156,206.47-215,565.96-84,586.50

Finding the Fourth Proportional to 156,206.47, 215,565.96 and 84,586.50

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Solution

The fourth proportional to 156,206.47, 215,565.96 and 84,586.50 is: 116,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,206.47 : 215,565.96 = 84,586.50 : x
  2. Step 2: Convert to fraction form
    156,206.47/215,565.96 = 84,586.50/x
  3. Step 3: Cross multiply
    156,206.47x = 215,565.96 × 84,586.50
  4. Step 4: Simplify right side
    156,206.47x = 18,233,969,219.43
  5. Step 5: Solve for x
    x = 18,233,969,219.43/156,206.47
  6. Step 6: Final answer
    x = 116,729.92

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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.