Home / 140,708.02-194,177.38-76,177.94

Finding the Fourth Proportional to 140,708.02, 194,177.38 and 76,177.94

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Solution

The fourth proportional to 140,708.02, 194,177.38 and 76,177.94 is: 105,125.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,708.02 : 194,177.38 = 76,177.94 : x
  2. Step 2: Convert to fraction form
    140,708.02/194,177.38 = 76,177.94/x
  3. Step 3: Cross multiply
    140,708.02x = 194,177.38 × 76,177.94
  4. Step 4: Simplify right side
    140,708.02x = 14,792,031,641.67
  5. Step 5: Solve for x
    x = 14,792,031,641.67/140,708.02
  6. Step 6: Final answer
    x = 105,125.72

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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.