Home / 221,089.17-305,111.22-125,612.04

Finding the Fourth Proportional to 221,089.17, 305,111.22 and 125,612.04

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Solution

The fourth proportional to 221,089.17, 305,111.22 and 125,612.04 is: 173,349.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,089.17 : 305,111.22 = 125,612.04 : x
  2. Step 2: Convert to fraction form
    221,089.17/305,111.22 = 125,612.04/x
  3. Step 3: Cross multiply
    221,089.17x = 305,111.22 × 125,612.04
  4. Step 4: Simplify right side
    221,089.17x = 38,325,642,771.09
  5. Step 5: Solve for x
    x = 38,325,642,771.09/221,089.17
  6. Step 6: Final answer
    x = 173,349.25

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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.