Home / 181,091.06-249,879.02-100,519.20

Finding the Fourth Proportional to 181,091.06, 249,879.02 and 100,519.20

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Solution

The fourth proportional to 181,091.06, 249,879.02 and 100,519.20 is: 138,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,091.06 : 249,879.02 = 100,519.20 : x
  2. Step 2: Convert to fraction form
    181,091.06/249,879.02 = 100,519.20/x
  3. Step 3: Cross multiply
    181,091.06x = 249,879.02 × 100,519.20
  4. Step 4: Simplify right side
    181,091.06x = 25,117,639,187.18
  5. Step 5: Solve for x
    x = 25,117,639,187.18/181,091.06
  6. Step 6: Final answer
    x = 138,701.71

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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.