Home / 156,211.71-215,572.28-84,591.81

Finding the Fourth Proportional to 156,211.71, 215,572.28 and 84,591.81

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Solution

The fourth proportional to 156,211.71, 215,572.28 and 84,591.81 is: 116,736.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,211.71 : 215,572.28 = 84,591.81 : x
  2. Step 2: Convert to fraction form
    156,211.71/215,572.28 = 84,591.81/x
  3. Step 3: Cross multiply
    156,211.71x = 215,572.28 × 84,591.81
  4. Step 4: Simplify right side
    156,211.71x = 18,235,648,928.07
  5. Step 5: Solve for x
    x = 18,235,648,928.07/156,211.71
  6. Step 6: Final answer
    x = 116,736.76

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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.