Home / 109,674.12-151,350.30-61,930.56

Finding the Fourth Proportional to 109,674.12, 151,350.30 and 61,930.56

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Solution

The fourth proportional to 109,674.12, 151,350.30 and 61,930.56 is: 85,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,674.12 : 151,350.30 = 61,930.56 : x
  2. Step 2: Convert to fraction form
    109,674.12/151,350.30 = 61,930.56/x
  3. Step 3: Cross multiply
    109,674.12x = 151,350.30 × 61,930.56
  4. Step 4: Simplify right side
    109,674.12x = 9,373,208,835.17
  5. Step 5: Solve for x
    x = 9,373,208,835.17/109,674.12
  6. Step 6: Final answer
    x = 85,464.18

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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.