Home / 147,205.70-220,841.13-53,711.18

Finding the Fourth Proportional to 147,205.70, 220,841.13 and 53,711.18

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Solution

The fourth proportional to 147,205.70, 220,841.13 and 53,711.18 is: 80,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,205.70 : 220,841.13 = 53,711.18 : x
  2. Step 2: Convert to fraction form
    147,205.70/220,841.13 = 53,711.18/x
  3. Step 3: Cross multiply
    147,205.70x = 220,841.13 × 53,711.18
  4. Step 4: Simplify right side
    147,205.70x = 11,861,637,684.83
  5. Step 5: Solve for x
    x = 11,861,637,684.83/147,205.70
  6. Step 6: Final answer
    x = 80,578.66

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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.