Home / 140,428.32-193,764.60-83,077.08

Finding the Fourth Proportional to 140,428.32, 193,764.60 and 83,077.08

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Solution

The fourth proportional to 140,428.32, 193,764.60 and 83,077.08 is: 114,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,428.32 : 193,764.60 = 83,077.08 : x
  2. Step 2: Convert to fraction form
    140,428.32/193,764.60 = 83,077.08/x
  3. Step 3: Cross multiply
    140,428.32x = 193,764.60 × 83,077.08
  4. Step 4: Simplify right side
    140,428.32x = 16,097,397,175.37
  5. Step 5: Solve for x
    x = 16,097,397,175.37/140,428.32
  6. Step 6: Final answer
    x = 114,630.70

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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.