Home / 193,111.80-266,510-107,079.30

Finding the Fourth Proportional to 193,111.80, 266,510 and 107,079.30

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Solution

The fourth proportional to 193,111.80, 266,510 and 107,079.30 is: 147,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,111.80 : 266,510 = 107,079.30 : x
  2. Step 2: Convert to fraction form
    193,111.80/266,510 = 107,079.30/x
  3. Step 3: Cross multiply
    193,111.80x = 266,510 × 107,079.30
  4. Step 4: Simplify right side
    193,111.80x = 28,537,704,243
  5. Step 5: Solve for x
    x = 28,537,704,243/193,111.80
  6. Step 6: Final answer
    x = 147,778.15

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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.