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Finding the Fourth Proportional to 159,698.56, 220,394.10 and 88,078.72

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Solution

The fourth proportional to 159,698.56, 220,394.10 and 88,078.72 is: 121,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,698.56 : 220,394.10 = 88,078.72 : x
  2. Step 2: Convert to fraction form
    159,698.56/220,394.10 = 88,078.72/x
  3. Step 3: Cross multiply
    159,698.56x = 220,394.10 × 88,078.72
  4. Step 4: Simplify right side
    159,698.56x = 19,412,030,223.55
  5. Step 5: Solve for x
    x = 19,412,030,223.55/159,698.56
  6. Step 6: Final answer
    x = 121,554.20

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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.