Home / 111,020.66-153,204.72-63,289.39

Finding the Fourth Proportional to 111,020.66, 153,204.72 and 63,289.39

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Solution

The fourth proportional to 111,020.66, 153,204.72 and 63,289.39 is: 87,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,020.66 : 153,204.72 = 63,289.39 : x
  2. Step 2: Convert to fraction form
    111,020.66/153,204.72 = 63,289.39/x
  3. Step 3: Cross multiply
    111,020.66x = 153,204.72 × 63,289.39
  4. Step 4: Simplify right side
    111,020.66x = 9,696,233,273.92
  5. Step 5: Solve for x
    x = 9,696,233,273.92/111,020.66
  6. Step 6: Final answer
    x = 87,337.20

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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.