Home / 140,087.28-193,320.90-76,426.41

Finding the Fourth Proportional to 140,087.28, 193,320.90 and 76,426.41

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Solution

The fourth proportional to 140,087.28, 193,320.90 and 76,426.41 is: 105,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,087.28 : 193,320.90 = 76,426.41 : x
  2. Step 2: Convert to fraction form
    140,087.28/193,320.90 = 76,426.41/x
  3. Step 3: Cross multiply
    140,087.28x = 193,320.90 × 76,426.41
  4. Step 4: Simplify right side
    140,087.28x = 14,774,822,364.97
  5. Step 5: Solve for x
    x = 14,774,822,364.97/140,087.28
  6. Step 6: Final answer
    x = 105,468.69

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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.