Home / 113,474.61-156,571.23-65,725.11

Finding the Fourth Proportional to 113,474.61, 156,571.23 and 65,725.11

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Solution

The fourth proportional to 113,474.61, 156,571.23 and 65,725.11 is: 90,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,474.61 : 156,571.23 = 65,725.11 : x
  2. Step 2: Convert to fraction form
    113,474.61/156,571.23 = 65,725.11/x
  3. Step 3: Cross multiply
    113,474.61x = 156,571.23 × 65,725.11
  4. Step 4: Simplify right side
    113,474.61x = 10,290,661,314.59
  5. Step 5: Solve for x
    x = 10,290,661,314.59/113,474.61
  6. Step 6: Final answer
    x = 90,686.91

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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.