Home / 148,100.59-204,378.20-80,117.40

Finding the Fourth Proportional to 148,100.59, 204,378.20 and 80,117.40

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Solution

The fourth proportional to 148,100.59, 204,378.20 and 80,117.40 is: 110,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,100.59 : 204,378.20 = 80,117.40 : x
  2. Step 2: Convert to fraction form
    148,100.59/204,378.20 = 80,117.40/x
  3. Step 3: Cross multiply
    148,100.59x = 204,378.20 × 80,117.40
  4. Step 4: Simplify right side
    148,100.59x = 16,374,250,000.68
  5. Step 5: Solve for x
    x = 16,374,250,000.68/148,100.59
  6. Step 6: Final answer
    x = 110,561.68

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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.