Home / 202,535.40-303,560.10-84,145.80

Finding the Fourth Proportional to 202,535.40, 303,560.10 and 84,145.80

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Solution

The fourth proportional to 202,535.40, 303,560.10 and 84,145.80 is: 126,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,535.40 : 303,560.10 = 84,145.80 : x
  2. Step 2: Convert to fraction form
    202,535.40/303,560.10 = 84,145.80/x
  3. Step 3: Cross multiply
    202,535.40x = 303,560.10 × 84,145.80
  4. Step 4: Simplify right side
    202,535.40x = 25,543,307,462.58
  5. Step 5: Solve for x
    x = 25,543,307,462.58/202,535.40
  6. Step 6: Final answer
    x = 126,117.74

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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.