Home / 103,621.60-155,432.40-95,748.40

Finding the Fourth Proportional to 103,621.60, 155,432.40 and 95,748.40

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Solution

The fourth proportional to 103,621.60, 155,432.40 and 95,748.40 is: 143,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.60 : 155,432.40 = 95,748.40 : x
  2. Step 2: Convert to fraction form
    103,621.60/155,432.40 = 95,748.40/x
  3. Step 3: Cross multiply
    103,621.60x = 155,432.40 × 95,748.40
  4. Step 4: Simplify right side
    103,621.60x = 14,882,403,608.16
  5. Step 5: Solve for x
    x = 14,882,403,608.16/103,621.60
  6. Step 6: Final answer
    x = 143,622.60

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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.