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Finding the Fourth Proportional to 159,858.70, 220,605.02 and 88,238.74

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Solution

The fourth proportional to 159,858.70, 220,605.02 and 88,238.74 is: 121,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858.70 : 220,605.02 = 88,238.74 : x
  2. Step 2: Convert to fraction form
    159,858.70/220,605.02 = 88,238.74/x
  3. Step 3: Cross multiply
    159,858.70x = 220,605.02 × 88,238.74
  4. Step 4: Simplify right side
    159,858.70x = 19,465,909,002.47
  5. Step 5: Solve for x
    x = 19,465,909,002.47/159,858.70
  6. Step 6: Final answer
    x = 121,769.47

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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.