Home / 140,084.16-193,318.56-76,422.48

Finding the Fourth Proportional to 140,084.16, 193,318.56 and 76,422.48

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Solution

The fourth proportional to 140,084.16, 193,318.56 and 76,422.48 is: 105,464.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,084.16 : 193,318.56 = 76,422.48 : x
  2. Step 2: Convert to fraction form
    140,084.16/193,318.56 = 76,422.48/x
  3. Step 3: Cross multiply
    140,084.16x = 193,318.56 × 76,422.48
  4. Step 4: Simplify right side
    140,084.16x = 14,773,883,785.23
  5. Step 5: Solve for x
    x = 14,773,883,785.23/140,084.16
  6. Step 6: Final answer
    x = 105,464.34

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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.