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Finding the Fourth Proportional to 159,651.71, 220,308.08 and 88,030.20

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Solution

The fourth proportional to 159,651.71, 220,308.08 and 88,030.20 is: 121,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651.71 : 220,308.08 = 88,030.20 : x
  2. Step 2: Convert to fraction form
    159,651.71/220,308.08 = 88,030.20/x
  3. Step 3: Cross multiply
    159,651.71x = 220,308.08 × 88,030.20
  4. Step 4: Simplify right side
    159,651.71x = 19,393,763,903.87
  5. Step 5: Solve for x
    x = 19,393,763,903.87/159,651.71
  6. Step 6: Final answer
    x = 121,475.46

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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.