Home / 153,408.18-211,652.54-89,700.88

Finding the Fourth Proportional to 153,408.18, 211,652.54 and 89,700.88

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Solution

The fourth proportional to 153,408.18, 211,652.54 and 89,700.88 is: 123,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,408.18 : 211,652.54 = 89,700.88 : x
  2. Step 2: Convert to fraction form
    153,408.18/211,652.54 = 89,700.88/x
  3. Step 3: Cross multiply
    153,408.18x = 211,652.54 × 89,700.88
  4. Step 4: Simplify right side
    153,408.18x = 18,985,419,092.24
  5. Step 5: Solve for x
    x = 18,985,419,092.24/153,408.18
  6. Step 6: Final answer
    x = 123,757.54

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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.