Home / 107,390.35-161,073.18-28,510.75

Finding the Fourth Proportional to 107,390.35, 161,073.18 and 28,510.75

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Solution

The fourth proportional to 107,390.35, 161,073.18 and 28,510.75 is: 42,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,390.35 : 161,073.18 = 28,510.75 : x
  2. Step 2: Convert to fraction form
    107,390.35/161,073.18 = 28,510.75/x
  3. Step 3: Cross multiply
    107,390.35x = 161,073.18 × 28,510.75
  4. Step 4: Simplify right side
    107,390.35x = 4,592,317,166.69
  5. Step 5: Solve for x
    x = 4,592,317,166.69/107,390.35
  6. Step 6: Final answer
    x = 42,762.85

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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.