Home / 100,216.86-138,233.43-64,350.06

Finding the Fourth Proportional to 100,216.86, 138,233.43 and 64,350.06

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Solution

The fourth proportional to 100,216.86, 138,233.43 and 64,350.06 is: 88,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,216.86 : 138,233.43 = 64,350.06 : x
  2. Step 2: Convert to fraction form
    100,216.86/138,233.43 = 64,350.06/x
  3. Step 3: Cross multiply
    100,216.86x = 138,233.43 × 64,350.06
  4. Step 4: Simplify right side
    100,216.86x = 8,895,329,514.51
  5. Step 5: Solve for x
    x = 8,895,329,514.51/100,216.86
  6. Step 6: Final answer
    x = 88,760.81

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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.