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Finding the Fourth Proportional to 159,647.30, 220,314.81 and 88,029.86

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Solution

The fourth proportional to 159,647.30, 220,314.81 and 88,029.86 is: 121,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,647.30 : 220,314.81 = 88,029.86 : x
  2. Step 2: Convert to fraction form
    159,647.30/220,314.81 = 88,029.86/x
  3. Step 3: Cross multiply
    159,647.30x = 220,314.81 × 88,029.86
  4. Step 4: Simplify right side
    159,647.30x = 19,394,281,880.23
  5. Step 5: Solve for x
    x = 19,394,281,880.23/159,647.30
  6. Step 6: Final answer
    x = 121,482.05

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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.