Home / 140,081.64-193,312.41-76,419.44

Finding the Fourth Proportional to 140,081.64, 193,312.41 and 76,419.44

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Solution

The fourth proportional to 140,081.64, 193,312.41 and 76,419.44 is: 105,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,081.64 : 193,312.41 = 76,419.44 : x
  2. Step 2: Convert to fraction form
    140,081.64/193,312.41 = 76,419.44/x
  3. Step 3: Cross multiply
    140,081.64x = 193,312.41 × 76,419.44
  4. Step 4: Simplify right side
    140,081.64x = 14,772,825,150.69
  5. Step 5: Solve for x
    x = 14,772,825,150.69/140,081.64
  6. Step 6: Final answer
    x = 105,458.68

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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.