Home / 221,561.18-305,746.71-136,676.06

Finding the Fourth Proportional to 221,561.18, 305,746.71 and 136,676.06

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Solution

The fourth proportional to 221,561.18, 305,746.71 and 136,676.06 is: 188,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,561.18 : 305,746.71 = 136,676.06 : x
  2. Step 2: Convert to fraction form
    221,561.18/305,746.71 = 136,676.06/x
  3. Step 3: Cross multiply
    221,561.18x = 305,746.71 × 136,676.06
  4. Step 4: Simplify right side
    221,561.18x = 41,788,255,680.76
  5. Step 5: Solve for x
    x = 41,788,255,680.76/221,561.18
  6. Step 6: Final answer
    x = 188,608.20

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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.