Home / 157,519.40-236,217.68-68,712.35

Finding the Fourth Proportional to 157,519.40, 236,217.68 and 68,712.35

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Solution

The fourth proportional to 157,519.40, 236,217.68 and 68,712.35 is: 103,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,519.40 : 236,217.68 = 68,712.35 : x
  2. Step 2: Convert to fraction form
    157,519.40/236,217.68 = 68,712.35/x
  3. Step 3: Cross multiply
    157,519.40x = 236,217.68 × 68,712.35
  4. Step 4: Simplify right side
    157,519.40x = 16,231,071,560.79
  5. Step 5: Solve for x
    x = 16,231,071,560.79/157,519.40
  6. Step 6: Final answer
    x = 103,041.73

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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.