Home / 124,079.72-171,289.50-76,373.96

Finding the Fourth Proportional to 124,079.72, 171,289.50 and 76,373.96

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Solution

The fourth proportional to 124,079.72, 171,289.50 and 76,373.96 is: 105,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,079.72 : 171,289.50 = 76,373.96 : x
  2. Step 2: Convert to fraction form
    124,079.72/171,289.50 = 76,373.96/x
  3. Step 3: Cross multiply
    124,079.72x = 171,289.50 × 76,373.96
  4. Step 4: Simplify right side
    124,079.72x = 13,082,057,421.42
  5. Step 5: Solve for x
    x = 13,082,057,421.42/124,079.72
  6. Step 6: Final answer
    x = 105,432.68

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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.