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Finding the Fourth Proportional to 111,307.38, 153,627.36 and 102,340.68

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Solution

The fourth proportional to 111,307.38, 153,627.36 and 102,340.68 is: 141,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,307.38 : 153,627.36 = 102,340.68 : x
  2. Step 2: Convert to fraction form
    111,307.38/153,627.36 = 102,340.68/x
  3. Step 3: Cross multiply
    111,307.38x = 153,627.36 × 102,340.68
  4. Step 4: Simplify right side
    111,307.38x = 15,722,328,489.00
  5. Step 5: Solve for x
    x = 15,722,328,489.00/111,307.38
  6. Step 6: Final answer
    x = 141,251.45

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1.5x scale

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.