Home / 107,128.20-160,641.93-39,613.59

Finding the Fourth Proportional to 107,128.20, 160,641.93 and 39,613.59

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Solution

The fourth proportional to 107,128.20, 160,641.93 and 39,613.59 is: 59,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.20 : 160,641.93 = 39,613.59 : x
  2. Step 2: Convert to fraction form
    107,128.20/160,641.93 = 39,613.59/x
  3. Step 3: Cross multiply
    107,128.20x = 160,641.93 × 39,613.59
  4. Step 4: Simplify right side
    107,128.20x = 6,363,603,700.38
  5. Step 5: Solve for x
    x = 6,363,603,700.38/107,128.20
  6. Step 6: Final answer
    x = 59,401.76

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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.