Home / 157,558.28-236,442.46-81,726.72

Finding the Fourth Proportional to 157,558.28, 236,442.46 and 81,726.72

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Solution

The fourth proportional to 157,558.28, 236,442.46 and 81,726.72 is: 122,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,558.28 : 236,442.46 = 81,726.72 : x
  2. Step 2: Convert to fraction form
    157,558.28/236,442.46 = 81,726.72/x
  3. Step 3: Cross multiply
    157,558.28x = 236,442.46 × 81,726.72
  4. Step 4: Simplify right side
    157,558.28x = 19,323,666,724.53
  5. Step 5: Solve for x
    x = 19,323,666,724.53/157,558.28
  6. Step 6: Final answer
    x = 122,644.57

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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.