Home / 102,065.18-152,770.21-54,561.51

Finding the Fourth Proportional to 102,065.18, 152,770.21 and 54,561.51

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Solution

The fourth proportional to 102,065.18, 152,770.21 and 54,561.51 is: 81,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,065.18 : 152,770.21 = 54,561.51 : x
  2. Step 2: Convert to fraction form
    102,065.18/152,770.21 = 54,561.51/x
  3. Step 3: Cross multiply
    102,065.18x = 152,770.21 × 54,561.51
  4. Step 4: Simplify right side
    102,065.18x = 8,335,373,340.62
  5. Step 5: Solve for x
    x = 8,335,373,340.62/102,065.18
  6. Step 6: Final answer
    x = 81,667.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.