Home / 142,408.08-196,608.43-88,765.76

Finding the Fourth Proportional to 142,408.08, 196,608.43 and 88,765.76

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Solution

The fourth proportional to 142,408.08, 196,608.43 and 88,765.76 is: 122,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,408.08 : 196,608.43 = 88,765.76 : x
  2. Step 2: Convert to fraction form
    142,408.08/196,608.43 = 88,765.76/x
  3. Step 3: Cross multiply
    142,408.08x = 196,608.43 × 88,765.76
  4. Step 4: Simplify right side
    142,408.08x = 17,452,096,711.36
  5. Step 5: Solve for x
    x = 17,452,096,711.36/142,408.08
  6. Step 6: Final answer
    x = 122,549.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.