Home / 134,545.46-201,427.22-78,213.80

Finding the Fourth Proportional to 134,545.46, 201,427.22 and 78,213.80

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Solution

The fourth proportional to 134,545.46, 201,427.22 and 78,213.80 is: 117,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,545.46 : 201,427.22 = 78,213.80 : x
  2. Step 2: Convert to fraction form
    134,545.46/201,427.22 = 78,213.80/x
  3. Step 3: Cross multiply
    134,545.46x = 201,427.22 × 78,213.80
  4. Step 4: Simplify right side
    134,545.46x = 15,754,388,998.74
  5. Step 5: Solve for x
    x = 15,754,388,998.74/134,545.46
  6. Step 6: Final answer
    x = 117,093.43

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1.5x scale

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.