Home / 156,815.81-216,406.65-96,425.90

Finding the Fourth Proportional to 156,815.81, 216,406.65 and 96,425.90

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Solution

The fourth proportional to 156,815.81, 216,406.65 and 96,425.90 is: 133,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.81 : 216,406.65 = 96,425.90 : x
  2. Step 2: Convert to fraction form
    156,815.81/216,406.65 = 96,425.90/x
  3. Step 3: Cross multiply
    156,815.81x = 216,406.65 × 96,425.90
  4. Step 4: Simplify right side
    156,815.81x = 20,867,205,992.24
  5. Step 5: Solve for x
    x = 20,867,205,992.24/156,815.81
  6. Step 6: Final answer
    x = 133,068.26

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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.