Home / 157,557.28-236,440.96-81,725.72

Finding the Fourth Proportional to 157,557.28, 236,440.96 and 81,725.72

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Solution

The fourth proportional to 157,557.28, 236,440.96 and 81,725.72 is: 122,643.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,557.28 : 236,440.96 = 81,725.72 : x
  2. Step 2: Convert to fraction form
    157,557.28/236,440.96 = 81,725.72/x
  3. Step 3: Cross multiply
    157,557.28x = 236,440.96 × 81,725.72
  4. Step 4: Simplify right side
    157,557.28x = 19,323,307,693.49
  5. Step 5: Solve for x
    x = 19,323,307,693.49/157,557.28
  6. Step 6: Final answer
    x = 122,643.06

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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.