Home / 113,001.84-156,000.60-79,616.88

Finding the Fourth Proportional to 113,001.84, 156,000.60 and 79,616.88

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Solution

The fourth proportional to 113,001.84, 156,000.60 and 79,616.88 is: 109,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,001.84 : 156,000.60 = 79,616.88 : x
  2. Step 2: Convert to fraction form
    113,001.84/156,000.60 = 79,616.88/x
  3. Step 3: Cross multiply
    113,001.84x = 156,000.60 × 79,616.88
  4. Step 4: Simplify right side
    113,001.84x = 12,420,281,050.13
  5. Step 5: Solve for x
    x = 12,420,281,050.13/113,001.84
  6. Step 6: Final answer
    x = 109,912.20

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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.