Home / 205,337.55-308,049.53-86,947.95

Finding the Fourth Proportional to 205,337.55, 308,049.53 and 86,947.95

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Solution

The fourth proportional to 205,337.55, 308,049.53 and 86,947.95 is: 130,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,337.55 : 308,049.53 = 86,947.95 : x
  2. Step 2: Convert to fraction form
    205,337.55/308,049.53 = 86,947.95/x
  3. Step 3: Cross multiply
    205,337.55x = 308,049.53 × 86,947.95
  4. Step 4: Simplify right side
    205,337.55x = 26,784,274,697.22
  5. Step 5: Solve for x
    x = 26,784,274,697.22/205,337.55
  6. Step 6: Final answer
    x = 130,440.22

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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.