Home / 157,082.10-235,623.15-125,978.10

Finding the Fourth Proportional to 157,082.10, 235,623.15 and 125,978.10

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Solution

The fourth proportional to 157,082.10, 235,623.15 and 125,978.10 is: 188,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,082.10 : 235,623.15 = 125,978.10 : x
  2. Step 2: Convert to fraction form
    157,082.10/235,623.15 = 125,978.10/x
  3. Step 3: Cross multiply
    157,082.10x = 235,623.15 × 125,978.10
  4. Step 4: Simplify right side
    157,082.10x = 29,683,356,753.02
  5. Step 5: Solve for x
    x = 29,683,356,753.02/157,082.10
  6. Step 6: Final answer
    x = 188,967.15

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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.