Home / 111,142.90-153,376.17-60,154.60

Finding the Fourth Proportional to 111,142.90, 153,376.17 and 60,154.60

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Solution

The fourth proportional to 111,142.90, 153,376.17 and 60,154.60 is: 83,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,142.90 : 153,376.17 = 60,154.60 : x
  2. Step 2: Convert to fraction form
    111,142.90/153,376.17 = 60,154.60/x
  3. Step 3: Cross multiply
    111,142.90x = 153,376.17 × 60,154.60
  4. Step 4: Simplify right side
    111,142.90x = 9,226,282,155.88
  5. Step 5: Solve for x
    x = 9,226,282,155.88/111,142.90
  6. Step 6: Final answer
    x = 83,012.79

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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.