Home / 140,151.80-193,402.38-76,489.08

Finding the Fourth Proportional to 140,151.80, 193,402.38 and 76,489.08

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Solution

The fourth proportional to 140,151.80, 193,402.38 and 76,489.08 is: 105,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,151.80 : 193,402.38 = 76,489.08 : x
  2. Step 2: Convert to fraction form
    140,151.80/193,402.38 = 76,489.08/x
  3. Step 3: Cross multiply
    140,151.80x = 193,402.38 × 76,489.08
  4. Step 4: Simplify right side
    140,151.80x = 14,793,170,116.01
  5. Step 5: Solve for x
    x = 14,793,170,116.01/140,151.80
  6. Step 6: Final answer
    x = 105,551.05

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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.