Home / 140,117.32-210,225.66-87,465.88

Finding the Fourth Proportional to 140,117.32, 210,225.66 and 87,465.88

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Solution

The fourth proportional to 140,117.32, 210,225.66 and 87,465.88 is: 131,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,117.32 : 210,225.66 = 87,465.88 : x
  2. Step 2: Convert to fraction form
    140,117.32/210,225.66 = 87,465.88/x
  3. Step 3: Cross multiply
    140,117.32x = 210,225.66 × 87,465.88
  4. Step 4: Simplify right side
    140,117.32x = 18,387,572,350.48
  5. Step 5: Solve for x
    x = 18,387,572,350.48/140,117.32
  6. Step 6: Final answer
    x = 131,229.83

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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.