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Finding the Fourth Proportional to 148,706.10, 205,214.68 and 80,723.13

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Solution

The fourth proportional to 148,706.10, 205,214.68 and 80,723.13 is: 111,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,706.10 : 205,214.68 = 80,723.13 : x
  2. Step 2: Convert to fraction form
    148,706.10/205,214.68 = 80,723.13/x
  3. Step 3: Cross multiply
    148,706.10x = 205,214.68 × 80,723.13
  4. Step 4: Simplify right side
    148,706.10x = 16,565,571,291.55
  5. Step 5: Solve for x
    x = 16,565,571,291.55/148,706.10
  6. Step 6: Final answer
    x = 111,398.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.