Home / 147,128.20-220,173.90-102,545.80

Finding the Fourth Proportional to 147,128.20, 220,173.90 and 102,545.80

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Solution

The fourth proportional to 147,128.20, 220,173.90 and 102,545.80 is: 153,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,128.20 : 220,173.90 = 102,545.80 : x
  2. Step 2: Convert to fraction form
    147,128.20/220,173.90 = 102,545.80/x
  3. Step 3: Cross multiply
    147,128.20x = 220,173.90 × 102,545.80
  4. Step 4: Simplify right side
    147,128.20x = 22,577,908,714.62
  5. Step 5: Solve for x
    x = 22,577,908,714.62/147,128.20
  6. Step 6: Final answer
    x = 153,457.38

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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.