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Finding the Fourth Proportional to 102,172.61, 140,821.04 and 96,267.71

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Solution

The fourth proportional to 102,172.61, 140,821.04 and 96,267.71 is: 132,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,172.61 : 140,821.04 = 96,267.71 : x
  2. Step 2: Convert to fraction form
    102,172.61/140,821.04 = 96,267.71/x
  3. Step 3: Cross multiply
    102,172.61x = 140,821.04 × 96,267.71
  4. Step 4: Simplify right side
    102,172.61x = 13,556,519,040.62
  5. Step 5: Solve for x
    x = 13,556,519,040.62/102,172.61
  6. Step 6: Final answer
    x = 132,682.52

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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.