Home / 140,387.79-193,735.17-76,725.57

Finding the Fourth Proportional to 140,387.79, 193,735.17 and 76,725.57

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Solution

The fourth proportional to 140,387.79, 193,735.17 and 76,725.57 is: 105,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,387.79 : 193,735.17 = 76,725.57 : x
  2. Step 2: Convert to fraction form
    140,387.79/193,735.17 = 76,725.57/x
  3. Step 3: Cross multiply
    140,387.79x = 193,735.17 × 76,725.57
  4. Step 4: Simplify right side
    140,387.79x = 14,864,441,347.30
  5. Step 5: Solve for x
    x = 14,864,441,347.30/140,387.79
  6. Step 6: Final answer
    x = 105,881.30

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1.5x scale

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.