Home / 140,129.46-193,382.76-76,471.36

Finding the Fourth Proportional to 140,129.46, 193,382.76 and 76,471.36

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Solution

The fourth proportional to 140,129.46, 193,382.76 and 76,471.36 is: 105,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,129.46 : 193,382.76 = 76,471.36 : x
  2. Step 2: Convert to fraction form
    140,129.46/193,382.76 = 76,471.36/x
  3. Step 3: Cross multiply
    140,129.46x = 193,382.76 × 76,471.36
  4. Step 4: Simplify right side
    140,129.46x = 14,788,242,657.75
  5. Step 5: Solve for x
    x = 14,788,242,657.75/140,129.46
  6. Step 6: Final answer
    x = 105,532.72

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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.