Home / 156,901.08-216,524.94-85,281.27

Finding the Fourth Proportional to 156,901.08, 216,524.94 and 85,281.27

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Solution

The fourth proportional to 156,901.08, 216,524.94 and 85,281.27 is: 117,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,901.08 : 216,524.94 = 85,281.27 : x
  2. Step 2: Convert to fraction form
    156,901.08/216,524.94 = 85,281.27/x
  3. Step 3: Cross multiply
    156,901.08x = 216,524.94 × 85,281.27
  4. Step 4: Simplify right side
    156,901.08x = 18,465,521,869.87
  5. Step 5: Solve for x
    x = 18,465,521,869.87/156,901.08
  6. Step 6: Final answer
    x = 117,688.94

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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.