Home / 159,642.34-220,307.32-88,021.10

Finding the Fourth Proportional to 159,642.34, 220,307.32 and 88,021.10

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Solution

The fourth proportional to 159,642.34, 220,307.32 and 88,021.10 is: 121,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,642.34 : 220,307.32 = 88,021.10 : x
  2. Step 2: Convert to fraction form
    159,642.34/220,307.32 = 88,021.10/x
  3. Step 3: Cross multiply
    159,642.34x = 220,307.32 × 88,021.10
  4. Step 4: Simplify right side
    159,642.34x = 19,391,692,644.45
  5. Step 5: Solve for x
    x = 19,391,692,644.45/159,642.34
  6. Step 6: Final answer
    x = 121,469.61

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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.