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Finding the Fourth Proportional to 159,647.80, 220,315.50 and 88,030.36

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Solution

The fourth proportional to 159,647.80, 220,315.50 and 88,030.36 is: 121,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,647.80 : 220,315.50 = 88,030.36 : x
  2. Step 2: Convert to fraction form
    159,647.80/220,315.50 = 88,030.36/x
  3. Step 3: Cross multiply
    159,647.80x = 220,315.50 × 88,030.36
  4. Step 4: Simplify right side
    159,647.80x = 19,394,452,778.58
  5. Step 5: Solve for x
    x = 19,394,452,778.58/159,647.80
  6. Step 6: Final answer
    x = 121,482.74

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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.