Home / 140,055.21-193,275.82-76,393.06

Finding the Fourth Proportional to 140,055.21, 193,275.82 and 76,393.06

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Solution

The fourth proportional to 140,055.21, 193,275.82 and 76,393.06 is: 105,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,055.21 : 193,275.82 = 76,393.06 : x
  2. Step 2: Convert to fraction form
    140,055.21/193,275.82 = 76,393.06/x
  3. Step 3: Cross multiply
    140,055.21x = 193,275.82 × 76,393.06
  4. Step 4: Simplify right side
    140,055.21x = 14,764,930,926.11
  5. Step 5: Solve for x
    x = 14,764,930,926.11/140,055.21
  6. Step 6: Final answer
    x = 105,422.22

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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.