Home / 100,531.24-138,716.48-58,093.72

Finding the Fourth Proportional to 100,531.24, 138,716.48 and 58,093.72

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Solution

The fourth proportional to 100,531.24, 138,716.48 and 58,093.72 is: 80,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,531.24 : 138,716.48 = 58,093.72 : x
  2. Step 2: Convert to fraction form
    100,531.24/138,716.48 = 58,093.72/x
  3. Step 3: Cross multiply
    100,531.24x = 138,716.48 × 58,093.72
  4. Step 4: Simplify right side
    100,531.24x = 8,058,556,348.51
  5. Step 5: Solve for x
    x = 8,058,556,348.51/100,531.24
  6. Step 6: Final answer
    x = 80,159.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.