Home / 145,311.96-217,835.91-129,565.56

Finding the Fourth Proportional to 145,311.96, 217,835.91 and 129,565.56

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Solution

The fourth proportional to 145,311.96, 217,835.91 and 129,565.56 is: 194,230.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,311.96 : 217,835.91 = 129,565.56 : x
  2. Step 2: Convert to fraction form
    145,311.96/217,835.91 = 129,565.56/x
  3. Step 3: Cross multiply
    145,311.96x = 217,835.91 × 129,565.56
  4. Step 4: Simplify right side
    145,311.96x = 28,224,031,667.26
  5. Step 5: Solve for x
    x = 28,224,031,667.26/145,311.96
  6. Step 6: Final answer
    x = 194,230.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.