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Finding the Fourth Proportional to 159,776.78, 220,491.78 and 88,156.79

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Solution

The fourth proportional to 159,776.78, 220,491.78 and 88,156.79 is: 121,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,776.78 : 220,491.78 = 88,156.79 : x
  2. Step 2: Convert to fraction form
    159,776.78/220,491.78 = 88,156.79/x
  3. Step 3: Cross multiply
    159,776.78x = 220,491.78 × 88,156.79
  4. Step 4: Simplify right side
    159,776.78x = 19,437,847,270.57
  5. Step 5: Solve for x
    x = 19,437,847,270.57/159,776.78
  6. Step 6: Final answer
    x = 121,656.27

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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.