Home / 140,120.40-193,368.96-76,460.88

Finding the Fourth Proportional to 140,120.40, 193,368.96 and 76,460.88

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Solution

The fourth proportional to 140,120.40, 193,368.96 and 76,460.88 is: 105,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,120.40 : 193,368.96 = 76,460.88 : x
  2. Step 2: Convert to fraction form
    140,120.40/193,368.96 = 76,460.88/x
  3. Step 3: Cross multiply
    140,120.40x = 193,368.96 × 76,460.88
  4. Step 4: Simplify right side
    140,120.40x = 14,785,160,846.28
  5. Step 5: Solve for x
    x = 14,785,160,846.28/140,120.40
  6. Step 6: Final answer
    x = 105,517.55

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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.