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Finding the Fourth Proportional to 149,872.97, 224,920.35 and 70,987.43

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Solution

The fourth proportional to 149,872.97, 224,920.35 and 70,987.43 is: 106,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,872.97 : 224,920.35 = 70,987.43 : x
  2. Step 2: Convert to fraction form
    149,872.97/224,920.35 = 70,987.43/x
  3. Step 3: Cross multiply
    149,872.97x = 224,920.35 × 70,987.43
  4. Step 4: Simplify right side
    149,872.97x = 15,966,516,476.60
  5. Step 5: Solve for x
    x = 15,966,516,476.60/149,872.97
  6. Step 6: Final answer
    x = 106,533.67

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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.