Home / 111,228.74-153,505.12-62,839.56

Finding the Fourth Proportional to 111,228.74, 153,505.12 and 62,839.56

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Solution

The fourth proportional to 111,228.74, 153,505.12 and 62,839.56 is: 86,723.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,228.74 : 153,505.12 = 62,839.56 : x
  2. Step 2: Convert to fraction form
    111,228.74/153,505.12 = 62,839.56/x
  3. Step 3: Cross multiply
    111,228.74x = 153,505.12 × 62,839.56
  4. Step 4: Simplify right side
    111,228.74x = 9,646,194,041.45
  5. Step 5: Solve for x
    x = 9,646,194,041.45/111,228.74
  6. Step 6: Final answer
    x = 86,723.93

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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.