Home / 140,385.19-193,731.09-76,722.97

Finding the Fourth Proportional to 140,385.19, 193,731.09 and 76,722.97

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Solution

The fourth proportional to 140,385.19, 193,731.09 and 76,722.97 is: 105,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,385.19 : 193,731.09 = 76,722.97 : x
  2. Step 2: Convert to fraction form
    140,385.19/193,731.09 = 76,722.97/x
  3. Step 3: Cross multiply
    140,385.19x = 193,731.09 × 76,722.97
  4. Step 4: Simplify right side
    140,385.19x = 14,863,624,606.14
  5. Step 5: Solve for x
    x = 14,863,624,606.14/140,385.19
  6. Step 6: Final answer
    x = 105,877.44

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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.