Home / 109,065.15-163,601.37-30,172.77

Finding the Fourth Proportional to 109,065.15, 163,601.37 and 30,172.77

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Solution

The fourth proportional to 109,065.15, 163,601.37 and 30,172.77 is: 45,260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,065.15 : 163,601.37 = 30,172.77 : x
  2. Step 2: Convert to fraction form
    109,065.15/163,601.37 = 30,172.77/x
  3. Step 3: Cross multiply
    109,065.15x = 163,601.37 × 30,172.77
  4. Step 4: Simplify right side
    109,065.15x = 4,936,306,357.83
  5. Step 5: Solve for x
    x = 4,936,306,357.83/109,065.15
  6. Step 6: Final answer
    x = 45,260.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.