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Finding the Fourth Proportional to 178,015.80, 245,655.68 and 101,559.65

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Solution

The fourth proportional to 178,015.80, 245,655.68 and 101,559.65 is: 140,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,015.80 : 245,655.68 = 101,559.65 : x
  2. Step 2: Convert to fraction form
    178,015.80/245,655.68 = 101,559.65/x
  3. Step 3: Cross multiply
    178,015.80x = 245,655.68 × 101,559.65
  4. Step 4: Simplify right side
    178,015.80x = 24,948,703,906.93
  5. Step 5: Solve for x
    x = 24,948,703,906.93/178,015.80
  6. Step 6: Final answer
    x = 140,148.82

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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.