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Finding the Fourth Proportional to 100,981.44, 151,304.76 and 61,418.88

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Solution

The fourth proportional to 100,981.44, 151,304.76 and 61,418.88 is: 92,026.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,981.44 : 151,304.76 = 61,418.88 : x
  2. Step 2: Convert to fraction form
    100,981.44/151,304.76 = 61,418.88/x
  3. Step 3: Cross multiply
    100,981.44x = 151,304.76 × 61,418.88
  4. Step 4: Simplify right side
    100,981.44x = 9,292,968,897.87
  5. Step 5: Solve for x
    x = 9,292,968,897.87/100,981.44
  6. Step 6: Final answer
    x = 92,026.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.