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Finding the Fourth Proportional to 112,522.40, 168,809.20 and 65,751.20

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Solution

The fourth proportional to 112,522.40, 168,809.20 and 65,751.20 is: 98,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,522.40 : 168,809.20 = 65,751.20 : x
  2. Step 2: Convert to fraction form
    112,522.40/168,809.20 = 65,751.20/x
  3. Step 3: Cross multiply
    112,522.40x = 168,809.20 × 65,751.20
  4. Step 4: Simplify right side
    112,522.40x = 11,099,407,471.04
  5. Step 5: Solve for x
    x = 11,099,407,471.04/112,522.40
  6. Step 6: Final answer
    x = 98,641.76

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1.5x scale

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.