Home / 111,486.35-153,850.38-60,497.78

Finding the Fourth Proportional to 111,486.35, 153,850.38 and 60,497.78

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Solution

The fourth proportional to 111,486.35, 153,850.38 and 60,497.78 is: 83,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,486.35 : 153,850.38 = 60,497.78 : x
  2. Step 2: Convert to fraction form
    111,486.35/153,850.38 = 60,497.78/x
  3. Step 3: Cross multiply
    111,486.35x = 153,850.38 × 60,497.78
  4. Step 4: Simplify right side
    111,486.35x = 9,307,606,442.16
  5. Step 5: Solve for x
    x = 9,307,606,442.16/111,486.35
  6. Step 6: Final answer
    x = 83,486.52

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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.