Home / 140,426.02-193,790.91-76,769.74

Finding the Fourth Proportional to 140,426.02, 193,790.91 and 76,769.74

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Solution

The fourth proportional to 140,426.02, 193,790.91 and 76,769.74 is: 105,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,426.02 : 193,790.91 = 76,769.74 : x
  2. Step 2: Convert to fraction form
    140,426.02/193,790.91 = 76,769.74/x
  3. Step 3: Cross multiply
    140,426.02x = 193,790.91 × 76,769.74
  4. Step 4: Simplify right side
    140,426.02x = 14,877,277,775.06
  5. Step 5: Solve for x
    x = 14,877,277,775.06/140,426.02
  6. Step 6: Final answer
    x = 105,943.88

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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.