Home / 102,545.90-153,840.45-43,351.10

Finding the Fourth Proportional to 102,545.90, 153,840.45 and 43,351.10

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Solution

The fourth proportional to 102,545.90, 153,840.45 and 43,351.10 is: 65,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,545.90 : 153,840.45 = 43,351.10 : x
  2. Step 2: Convert to fraction form
    102,545.90/153,840.45 = 43,351.10/x
  3. Step 3: Cross multiply
    102,545.90x = 153,840.45 × 43,351.10
  4. Step 4: Simplify right side
    102,545.90x = 6,669,152,732.00
  5. Step 5: Solve for x
    x = 6,669,152,732.00/102,545.90
  6. Step 6: Final answer
    x = 65,035.78

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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.