Home / 140,776.52-194,271.64-77,116.60

Finding the Fourth Proportional to 140,776.52, 194,271.64 and 77,116.60

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Solution

The fourth proportional to 140,776.52, 194,271.64 and 77,116.60 is: 106,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,776.52 : 194,271.64 = 77,116.60 : x
  2. Step 2: Convert to fraction form
    140,776.52/194,271.64 = 77,116.60/x
  3. Step 3: Cross multiply
    140,776.52x = 194,271.64 × 77,116.60
  4. Step 4: Simplify right side
    140,776.52x = 14,981,568,353.22
  5. Step 5: Solve for x
    x = 14,981,568,353.22/140,776.52
  6. Step 6: Final answer
    x = 106,420.93

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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.