Home / 138,847.50-208,279.32-39,015.48

Finding the Fourth Proportional to 138,847.50, 208,279.32 and 39,015.48

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Solution

The fourth proportional to 138,847.50, 208,279.32 and 39,015.48 is: 58,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,847.50 : 208,279.32 = 39,015.48 : x
  2. Step 2: Convert to fraction form
    138,847.50/208,279.32 = 39,015.48/x
  3. Step 3: Cross multiply
    138,847.50x = 208,279.32 × 39,015.48
  4. Step 4: Simplify right side
    138,847.50x = 8,126,117,643.87
  5. Step 5: Solve for x
    x = 8,126,117,643.87/138,847.50
  6. Step 6: Final answer
    x = 58,525.49

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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.