Home / 176,625.11-243,777.65-100,145.72

Finding the Fourth Proportional to 176,625.11, 243,777.65 and 100,145.72

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Solution

The fourth proportional to 176,625.11, 243,777.65 and 100,145.72 is: 138,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,625.11 : 243,777.65 = 100,145.72 : x
  2. Step 2: Convert to fraction form
    176,625.11/243,777.65 = 100,145.72/x
  3. Step 3: Cross multiply
    176,625.11x = 243,777.65 × 100,145.72
  4. Step 4: Simplify right side
    176,625.11x = 24,413,286,559.54
  5. Step 5: Solve for x
    x = 24,413,286,559.54/176,625.11
  6. Step 6: Final answer
    x = 138,220.93

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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.