Home / 147,355.20-203,342.40-80,287.20

Finding the Fourth Proportional to 147,355.20, 203,342.40 and 80,287.20

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Solution

The fourth proportional to 147,355.20, 203,342.40 and 80,287.20 is: 110,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,355.20 : 203,342.40 = 80,287.20 : x
  2. Step 2: Convert to fraction form
    147,355.20/203,342.40 = 80,287.20/x
  3. Step 3: Cross multiply
    147,355.20x = 203,342.40 × 80,287.20
  4. Step 4: Simplify right side
    147,355.20x = 16,325,791,937.28
  5. Step 5: Solve for x
    x = 16,325,791,937.28/147,355.20
  6. Step 6: Final answer
    x = 110,792.10

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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.