Home / 109,740.92-151,440.27-61,342.61

Finding the Fourth Proportional to 109,740.92, 151,440.27 and 61,342.61

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Solution

The fourth proportional to 109,740.92, 151,440.27 and 61,342.61 is: 84,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,740.92 : 151,440.27 = 61,342.61 : x
  2. Step 2: Convert to fraction form
    109,740.92/151,440.27 = 61,342.61/x
  3. Step 3: Cross multiply
    109,740.92x = 151,440.27 × 61,342.61
  4. Step 4: Simplify right side
    109,740.92x = 9,289,740,663.70
  5. Step 5: Solve for x
    x = 9,289,740,663.70/109,740.92
  6. Step 6: Final answer
    x = 84,651.57

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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.