Home / 142,504.80-196,659.68-78,847.04

Finding the Fourth Proportional to 142,504.80, 196,659.68 and 78,847.04

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Solution

The fourth proportional to 142,504.80, 196,659.68 and 78,847.04 is: 108,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,504.80 : 196,659.68 = 78,847.04 : x
  2. Step 2: Convert to fraction form
    142,504.80/196,659.68 = 78,847.04/x
  3. Step 3: Cross multiply
    142,504.80x = 196,659.68 × 78,847.04
  4. Step 4: Simplify right side
    142,504.80x = 15,506,033,655.35
  5. Step 5: Solve for x
    x = 15,506,033,655.35/142,504.80
  6. Step 6: Final answer
    x = 108,810.61

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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.