Home / 147,207.10-220,875.45-68,280.70

Finding the Fourth Proportional to 147,207.10, 220,875.45 and 68,280.70

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Solution

The fourth proportional to 147,207.10, 220,875.45 and 68,280.70 is: 102,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,207.10 : 220,875.45 = 68,280.70 : x
  2. Step 2: Convert to fraction form
    147,207.10/220,875.45 = 68,280.70/x
  3. Step 3: Cross multiply
    147,207.10x = 220,875.45 × 68,280.70
  4. Step 4: Simplify right side
    147,207.10x = 15,081,530,338.82
  5. Step 5: Solve for x
    x = 15,081,530,338.82/147,207.10
  6. Step 6: Final answer
    x = 102,451.11

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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.