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Finding the Fourth Proportional to 111,240, 153,511.20 and 60,937.92

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Solution

The fourth proportional to 111,240, 153,511.20 and 60,937.92 is: 84,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,240 : 153,511.20 = 60,937.92 : x
  2. Step 2: Convert to fraction form
    111,240/153,511.20 = 60,937.92/x
  3. Step 3: Cross multiply
    111,240x = 153,511.20 × 60,937.92
  4. Step 4: Simplify right side
    111,240x = 9,354,653,224.70
  5. Step 5: Solve for x
    x = 9,354,653,224.70/111,240
  6. Step 6: Final answer
    x = 84,094.33

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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.