Home / 188,515.65-260,145.02-103,632.11

Finding the Fourth Proportional to 188,515.65, 260,145.02 and 103,632.11

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Solution

The fourth proportional to 188,515.65, 260,145.02 and 103,632.11 is: 143,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,515.65 : 260,145.02 = 103,632.11 : x
  2. Step 2: Convert to fraction form
    188,515.65/260,145.02 = 103,632.11/x
  3. Step 3: Cross multiply
    188,515.65x = 260,145.02 × 103,632.11
  4. Step 4: Simplify right side
    188,515.65x = 26,959,376,679.56
  5. Step 5: Solve for x
    x = 26,959,376,679.56/188,515.65
  6. Step 6: Final answer
    x = 143,008.69

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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.