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Finding the Fourth Proportional to 159,661.96, 220,321.06 and 88,041.64

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Solution

The fourth proportional to 159,661.96, 220,321.06 and 88,041.64 is: 121,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,661.96 : 220,321.06 = 88,041.64 : x
  2. Step 2: Convert to fraction form
    159,661.96/220,321.06 = 88,041.64/x
  3. Step 3: Cross multiply
    159,661.96x = 220,321.06 × 88,041.64
  4. Step 4: Simplify right side
    159,661.96x = 19,397,427,448.94
  5. Step 5: Solve for x
    x = 19,397,427,448.94/159,661.96
  6. Step 6: Final answer
    x = 121,490.60

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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.