Home / 99,987.23-149,988.76-33,427.71

Finding the Fourth Proportional to 99,987.23, 149,988.76 and 33,427.71

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Solution

The fourth proportional to 99,987.23, 149,988.76 and 33,427.71 is: 50,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,987.23 : 149,988.76 = 33,427.71 : x
  2. Step 2: Convert to fraction form
    99,987.23/149,988.76 = 33,427.71/x
  3. Step 3: Cross multiply
    99,987.23x = 149,988.76 × 33,427.71
  4. Step 4: Simplify right side
    99,987.23x = 5,013,780,688.97
  5. Step 5: Solve for x
    x = 5,013,780,688.97/99,987.23
  6. Step 6: Final answer
    x = 50,144.21

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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.