Home / 188,515.08-260,111.55-112,061.21

Finding the Fourth Proportional to 188,515.08, 260,111.55 and 112,061.21

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Solution

The fourth proportional to 188,515.08, 260,111.55 and 112,061.21 is: 154,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,515.08 : 260,111.55 = 112,061.21 : x
  2. Step 2: Convert to fraction form
    188,515.08/260,111.55 = 112,061.21/x
  3. Step 3: Cross multiply
    188,515.08x = 260,111.55 × 112,061.21
  4. Step 4: Simplify right side
    188,515.08x = 29,148,414,147.65
  5. Step 5: Solve for x
    x = 29,148,414,147.65/188,515.08
  6. Step 6: Final answer
    x = 154,621.13

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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.