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Finding the Fourth Proportional to 120,061.65, 180,101.61 and 35,815.23

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Solution

The fourth proportional to 120,061.65, 180,101.61 and 35,815.23 is: 53,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,061.65 : 180,101.61 = 35,815.23 : x
  2. Step 2: Convert to fraction form
    120,061.65/180,101.61 = 35,815.23/x
  3. Step 3: Cross multiply
    120,061.65x = 180,101.61 × 35,815.23
  4. Step 4: Simplify right side
    120,061.65x = 6,450,380,585.52
  5. Step 5: Solve for x
    x = 6,450,380,585.52/120,061.65
  6. Step 6: Final answer
    x = 53,725.57

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1.5x scale

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.