Home / 140,208.81-193,479.15-76,546.47

Finding the Fourth Proportional to 140,208.81, 193,479.15 and 76,546.47

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Solution

The fourth proportional to 140,208.81, 193,479.15 and 76,546.47 is: 105,629.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,208.81 : 193,479.15 = 76,546.47 : x
  2. Step 2: Convert to fraction form
    140,208.81/193,479.15 = 76,546.47/x
  3. Step 3: Cross multiply
    140,208.81x = 193,479.15 × 76,546.47
  4. Step 4: Simplify right side
    140,208.81x = 14,810,145,951.10
  5. Step 5: Solve for x
    x = 14,810,145,951.10/140,208.81
  6. Step 6: Final answer
    x = 105,629.21

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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.