Home / 123,247.16-170,082.03-72,261.20

Finding the Fourth Proportional to 123,247.16, 170,082.03 and 72,261.20

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Solution

The fourth proportional to 123,247.16, 170,082.03 and 72,261.20 is: 99,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,247.16 : 170,082.03 = 72,261.20 : x
  2. Step 2: Convert to fraction form
    123,247.16/170,082.03 = 72,261.20/x
  3. Step 3: Cross multiply
    123,247.16x = 170,082.03 × 72,261.20
  4. Step 4: Simplify right side
    123,247.16x = 12,290,330,735.83
  5. Step 5: Solve for x
    x = 12,290,330,735.83/123,247.16
  6. Step 6: Final answer
    x = 99,721.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.