Home / 157,740.18-236,233.07-90,977.91

Finding the Fourth Proportional to 157,740.18, 236,233.07 and 90,977.91

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Solution

The fourth proportional to 157,740.18, 236,233.07 and 90,977.91 is: 136,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,740.18 : 236,233.07 = 90,977.91 : x
  2. Step 2: Convert to fraction form
    157,740.18/236,233.07 = 90,977.91/x
  3. Step 3: Cross multiply
    157,740.18x = 236,233.07 × 90,977.91
  4. Step 4: Simplify right side
    157,740.18x = 21,491,990,981.48
  5. Step 5: Solve for x
    x = 21,491,990,981.48/157,740.18
  6. Step 6: Final answer
    x = 136,249.31

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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.