Home / 137,654.28-189,959.90-77,223.83

Finding the Fourth Proportional to 137,654.28, 189,959.90 and 77,223.83

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Solution

The fourth proportional to 137,654.28, 189,959.90 and 77,223.83 is: 106,567.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,654.28 : 189,959.90 = 77,223.83 : x
  2. Step 2: Convert to fraction form
    137,654.28/189,959.90 = 77,223.83/x
  3. Step 3: Cross multiply
    137,654.28x = 189,959.90 × 77,223.83
  4. Step 4: Simplify right side
    137,654.28x = 14,669,429,688.50
  5. Step 5: Solve for x
    x = 14,669,429,688.50/137,654.28
  6. Step 6: Final answer
    x = 106,567.19

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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.