Home / 134,857.32-202,223.40-78,713.60

Finding the Fourth Proportional to 134,857.32, 202,223.40 and 78,713.60

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Solution

The fourth proportional to 134,857.32, 202,223.40 and 78,713.60 is: 118,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857.32 : 202,223.40 = 78,713.60 : x
  2. Step 2: Convert to fraction form
    134,857.32/202,223.40 = 78,713.60/x
  3. Step 3: Cross multiply
    134,857.32x = 202,223.40 × 78,713.60
  4. Step 4: Simplify right side
    134,857.32x = 15,917,731,818.24
  5. Step 5: Solve for x
    x = 15,917,731,818.24/134,857.32
  6. Step 6: Final answer
    x = 118,033.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.