Home / 124,475.20-171,639.90-84,118.96

Finding the Fourth Proportional to 124,475.20, 171,639.90 and 84,118.96

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Solution

The fourth proportional to 124,475.20, 171,639.90 and 84,118.96 is: 115,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,475.20 : 171,639.90 = 84,118.96 : x
  2. Step 2: Convert to fraction form
    124,475.20/171,639.90 = 84,118.96/x
  3. Step 3: Cross multiply
    124,475.20x = 171,639.90 × 84,118.96
  4. Step 4: Simplify right side
    124,475.20x = 14,438,169,882.50
  5. Step 5: Solve for x
    x = 14,438,169,882.50/124,475.20
  6. Step 6: Final answer
    x = 115,992.34

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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.