Home / 107,200.20-147,912.62-61,868.56

Finding the Fourth Proportional to 107,200.20, 147,912.62 and 61,868.56

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Solution

The fourth proportional to 107,200.20, 147,912.62 and 61,868.56 is: 85,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,200.20 : 147,912.62 = 61,868.56 : x
  2. Step 2: Convert to fraction form
    107,200.20/147,912.62 = 61,868.56/x
  3. Step 3: Cross multiply
    107,200.20x = 147,912.62 × 61,868.56
  4. Step 4: Simplify right side
    107,200.20x = 9,151,140,805.23
  5. Step 5: Solve for x
    x = 9,151,140,805.23/107,200.20
  6. Step 6: Final answer
    x = 85,364.96

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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.