Home / 168,140.16-251,765.28-101,491.20

Finding the Fourth Proportional to 168,140.16, 251,765.28 and 101,491.20

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Solution

The fourth proportional to 168,140.16, 251,765.28 and 101,491.20 is: 151,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,140.16 : 251,765.28 = 101,491.20 : x
  2. Step 2: Convert to fraction form
    168,140.16/251,765.28 = 101,491.20/x
  3. Step 3: Cross multiply
    168,140.16x = 251,765.28 × 101,491.20
  4. Step 4: Simplify right side
    168,140.16x = 25,551,960,385.54
  5. Step 5: Solve for x
    x = 25,551,960,385.54/168,140.16
  6. Step 6: Final answer
    x = 151,968.22

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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.