Home / 132,890.04-183,316.50-81,913.86

Finding the Fourth Proportional to 132,890.04, 183,316.50 and 81,913.86

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Solution

The fourth proportional to 132,890.04, 183,316.50 and 81,913.86 is: 112,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,890.04 : 183,316.50 = 81,913.86 : x
  2. Step 2: Convert to fraction form
    132,890.04/183,316.50 = 81,913.86/x
  3. Step 3: Cross multiply
    132,890.04x = 183,316.50 × 81,913.86
  4. Step 4: Simplify right side
    132,890.04x = 15,016,162,116.69
  5. Step 5: Solve for x
    x = 15,016,162,116.69/132,890.04
  6. Step 6: Final answer
    x = 112,996.90

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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.