Home / 109,604.32-151,245.36-61,869.28

Finding the Fourth Proportional to 109,604.32, 151,245.36 and 61,869.28

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Solution

The fourth proportional to 109,604.32, 151,245.36 and 61,869.28 is: 85,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,604.32 : 151,245.36 = 61,869.28 : x
  2. Step 2: Convert to fraction form
    109,604.32/151,245.36 = 61,869.28/x
  3. Step 3: Cross multiply
    109,604.32x = 151,245.36 × 61,869.28
  4. Step 4: Simplify right side
    109,604.32x = 9,357,441,526.54
  5. Step 5: Solve for x
    x = 9,357,441,526.54/109,604.32
  6. Step 6: Final answer
    x = 85,374.75

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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.