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Finding the Fourth Proportional to 100,988.26, 151,486.25 and 37,801.74

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Solution

The fourth proportional to 100,988.26, 151,486.25 and 37,801.74 is: 56,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,988.26 : 151,486.25 = 37,801.74 : x
  2. Step 2: Convert to fraction form
    100,988.26/151,486.25 = 37,801.74/x
  3. Step 3: Cross multiply
    100,988.26x = 151,486.25 × 37,801.74
  4. Step 4: Simplify right side
    100,988.26x = 5,726,442,889.64
  5. Step 5: Solve for x
    x = 5,726,442,889.64/100,988.26
  6. Step 6: Final answer
    x = 56,704.05

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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.