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Finding the Fourth Proportional to 100,000.61, 150,001.05 and 40,836.28

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Solution

The fourth proportional to 100,000.61, 150,001.05 and 40,836.28 is: 61,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,000.61 : 150,001.05 = 40,836.28 : x
  2. Step 2: Convert to fraction form
    100,000.61/150,001.05 = 40,836.28/x
  3. Step 3: Cross multiply
    100,000.61x = 150,001.05 × 40,836.28
  4. Step 4: Simplify right side
    100,000.61x = 6,125,484,878.09
  5. Step 5: Solve for x
    x = 6,125,484,878.09/100,000.61
  6. Step 6: Final answer
    x = 61,254.48

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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.