Home / 155,983.23-215,291.25-101,440.53

Finding the Fourth Proportional to 155,983.23, 215,291.25 and 101,440.53

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Solution

The fourth proportional to 155,983.23, 215,291.25 and 101,440.53 is: 140,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,983.23 : 215,291.25 = 101,440.53 : x
  2. Step 2: Convert to fraction form
    155,983.23/215,291.25 = 101,440.53/x
  3. Step 3: Cross multiply
    155,983.23x = 215,291.25 × 101,440.53
  4. Step 4: Simplify right side
    155,983.23x = 21,839,258,504.36
  5. Step 5: Solve for x
    x = 21,839,258,504.36/155,983.23
  6. Step 6: Final answer
    x = 140,010.30

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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.