Home / 181,228.78-250,088.80-100,661.47

Finding the Fourth Proportional to 181,228.78, 250,088.80 and 100,661.47

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Solution

The fourth proportional to 181,228.78, 250,088.80 and 100,661.47 is: 138,908.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,228.78 : 250,088.80 = 100,661.47 : x
  2. Step 2: Convert to fraction form
    181,228.78/250,088.80 = 100,661.47/x
  3. Step 3: Cross multiply
    181,228.78x = 250,088.80 × 100,661.47
  4. Step 4: Simplify right side
    181,228.78x = 25,174,305,641.84
  5. Step 5: Solve for x
    x = 25,174,305,641.84/181,228.78
  6. Step 6: Final answer
    x = 138,908.99

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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.