Home / 113,342.41-156,409.39-61,657.80

Finding the Fourth Proportional to 113,342.41, 156,409.39 and 61,657.80

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Solution

The fourth proportional to 113,342.41, 156,409.39 and 61,657.80 is: 85,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,342.41 : 156,409.39 = 61,657.80 : x
  2. Step 2: Convert to fraction form
    113,342.41/156,409.39 = 61,657.80/x
  3. Step 3: Cross multiply
    113,342.41x = 156,409.39 × 61,657.80
  4. Step 4: Simplify right side
    113,342.41x = 9,643,858,886.74
  5. Step 5: Solve for x
    x = 9,643,858,886.74/113,342.41
  6. Step 6: Final answer
    x = 85,086.06

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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.