Home / 140,118.26-193,367.86-76,459.55

Finding the Fourth Proportional to 140,118.26, 193,367.86 and 76,459.55

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Solution

The fourth proportional to 140,118.26, 193,367.86 and 76,459.55 is: 105,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,118.26 : 193,367.86 = 76,459.55 : x
  2. Step 2: Convert to fraction form
    140,118.26/193,367.86 = 76,459.55/x
  3. Step 3: Cross multiply
    140,118.26x = 193,367.86 × 76,459.55
  4. Step 4: Simplify right side
    140,118.26x = 14,784,818,402.07
  5. Step 5: Solve for x
    x = 14,784,818,402.07/140,118.26
  6. Step 6: Final answer
    x = 105,516.72

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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.