Home / 157,739.43-236,231.95-90,977.16

Finding the Fourth Proportional to 157,739.43, 236,231.95 and 90,977.16

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Solution

The fourth proportional to 157,739.43, 236,231.95 and 90,977.16 is: 136,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,739.43 : 236,231.95 = 90,977.16 : x
  2. Step 2: Convert to fraction form
    157,739.43/236,231.95 = 90,977.16/x
  3. Step 3: Cross multiply
    157,739.43x = 236,231.95 × 90,977.16
  4. Step 4: Simplify right side
    157,739.43x = 21,491,711,912.26
  5. Step 5: Solve for x
    x = 21,491,711,912.26/157,739.43
  6. Step 6: Final answer
    x = 136,248.19

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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.