Home / 109,758.70-151,470.25-61,359.36

Finding the Fourth Proportional to 109,758.70, 151,470.25 and 61,359.36

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Solution

The fourth proportional to 109,758.70, 151,470.25 and 61,359.36 is: 84,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,758.70 : 151,470.25 = 61,359.36 : x
  2. Step 2: Convert to fraction form
    109,758.70/151,470.25 = 61,359.36/x
  3. Step 3: Cross multiply
    109,758.70x = 151,470.25 × 61,359.36
  4. Step 4: Simplify right side
    109,758.70x = 9,294,117,861.79
  5. Step 5: Solve for x
    x = 9,294,117,861.79/109,758.70
  6. Step 6: Final answer
    x = 84,677.74

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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.