Home / 171,728.88-236,987.64-100,152.24

Finding the Fourth Proportional to 171,728.88, 236,987.64 and 100,152.24

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Solution

The fourth proportional to 171,728.88, 236,987.64 and 100,152.24 is: 138,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,728.88 : 236,987.64 = 100,152.24 : x
  2. Step 2: Convert to fraction form
    171,728.88/236,987.64 = 100,152.24/x
  3. Step 3: Cross multiply
    171,728.88x = 236,987.64 × 100,152.24
  4. Step 4: Simplify right side
    171,728.88x = 23,734,842,998.31
  5. Step 5: Solve for x
    x = 23,734,842,998.31/171,728.88
  6. Step 6: Final answer
    x = 138,211.13

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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.