Home / 236,306.15-354,512.10-86,543.45

Finding the Fourth Proportional to 236,306.15, 354,512.10 and 86,543.45

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Solution

The fourth proportional to 236,306.15, 354,512.10 and 86,543.45 is: 129,834.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,306.15 : 354,512.10 = 86,543.45 : x
  2. Step 2: Convert to fraction form
    236,306.15/354,512.10 = 86,543.45/x
  3. Step 3: Cross multiply
    236,306.15x = 354,512.10 × 86,543.45
  4. Step 4: Simplify right side
    236,306.15x = 30,680,700,200.75
  5. Step 5: Solve for x
    x = 30,680,700,200.75/236,306.15
  6. Step 6: Final answer
    x = 129,834.54

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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.