Home / 140,152.80-193,403.76-76,490.08

Finding the Fourth Proportional to 140,152.80, 193,403.76 and 76,490.08

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Solution

The fourth proportional to 140,152.80, 193,403.76 and 76,490.08 is: 105,552.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,152.80 : 193,403.76 = 76,490.08 : x
  2. Step 2: Convert to fraction form
    140,152.80/193,403.76 = 76,490.08/x
  3. Step 3: Cross multiply
    140,152.80x = 193,403.76 × 76,490.08
  4. Step 4: Simplify right side
    140,152.80x = 14,793,469,074.70
  5. Step 5: Solve for x
    x = 14,793,469,074.70/140,152.80
  6. Step 6: Final answer
    x = 105,552.43

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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.