Home / 129,283.04-193,944-40,516.80

Finding the Fourth Proportional to 129,283.04, 193,944 and 40,516.80

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Solution

The fourth proportional to 129,283.04, 193,944 and 40,516.80 is: 60,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,283.04 : 193,944 = 40,516.80 : x
  2. Step 2: Convert to fraction form
    129,283.04/193,944 = 40,516.80/x
  3. Step 3: Cross multiply
    129,283.04x = 193,944 × 40,516.80
  4. Step 4: Simplify right side
    129,283.04x = 7,857,990,259.20
  5. Step 5: Solve for x
    x = 7,857,990,259.20/129,283.04
  6. Step 6: Final answer
    x = 60,781.29

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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.