Home / 138,723.80-208,085.70-134,131.10

Finding the Fourth Proportional to 138,723.80, 208,085.70 and 134,131.10

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Solution

The fourth proportional to 138,723.80, 208,085.70 and 134,131.10 is: 201,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,723.80 : 208,085.70 = 134,131.10 : x
  2. Step 2: Convert to fraction form
    138,723.80/208,085.70 = 134,131.10/x
  3. Step 3: Cross multiply
    138,723.80x = 208,085.70 × 134,131.10
  4. Step 4: Simplify right side
    138,723.80x = 27,910,763,835.27
  5. Step 5: Solve for x
    x = 27,910,763,835.27/138,723.80
  6. Step 6: Final answer
    x = 201,196.65

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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.