Home / 149,921.40-224,738.10-86,676.60

Finding the Fourth Proportional to 149,921.40, 224,738.10 and 86,676.60

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Solution

The fourth proportional to 149,921.40, 224,738.10 and 86,676.60 is: 129,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,921.40 : 224,738.10 = 86,676.60 : x
  2. Step 2: Convert to fraction form
    149,921.40/224,738.10 = 86,676.60/x
  3. Step 3: Cross multiply
    149,921.40x = 224,738.10 × 86,676.60
  4. Step 4: Simplify right side
    149,921.40x = 19,479,534,398.46
  5. Step 5: Solve for x
    x = 19,479,534,398.46/149,921.40
  6. Step 6: Final answer
    x = 129,931.65

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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.