Home / 221,111.10-305,134.32-125,623.02

Finding the Fourth Proportional to 221,111.10, 305,134.32 and 125,623.02

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Solution

The fourth proportional to 221,111.10, 305,134.32 and 125,623.02 is: 173,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,111.10 : 305,134.32 = 125,623.02 : x
  2. Step 2: Convert to fraction form
    221,111.10/305,134.32 = 125,623.02/x
  3. Step 3: Cross multiply
    221,111.10x = 305,134.32 × 125,623.02
  4. Step 4: Simplify right side
    221,111.10x = 38,331,894,784.05
  5. Step 5: Solve for x
    x = 38,331,894,784.05/221,111.10
  6. Step 6: Final answer
    x = 173,360.34

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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.