Home / 188,510.27-260,145.03-103,632.80

Finding the Fourth Proportional to 188,510.27, 260,145.03 and 103,632.80

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Solution

The fourth proportional to 188,510.27, 260,145.03 and 103,632.80 is: 143,013.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,510.27 : 260,145.03 = 103,632.80 : x
  2. Step 2: Convert to fraction form
    188,510.27/260,145.03 = 103,632.80/x
  3. Step 3: Cross multiply
    188,510.27x = 260,145.03 × 103,632.80
  4. Step 4: Simplify right side
    188,510.27x = 26,959,557,864.98
  5. Step 5: Solve for x
    x = 26,959,557,864.98/188,510.27
  6. Step 6: Final answer
    x = 143,013.74

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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.