Home / 181,345.77-250,257.29-100,780.80

Finding the Fourth Proportional to 181,345.77, 250,257.29 and 100,780.80

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Solution

The fourth proportional to 181,345.77, 250,257.29 and 100,780.80 is: 139,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,345.77 : 250,257.29 = 100,780.80 : x
  2. Step 2: Convert to fraction form
    181,345.77/250,257.29 = 100,780.80/x
  3. Step 3: Cross multiply
    181,345.77x = 250,257.29 × 100,780.80
  4. Step 4: Simplify right side
    181,345.77x = 25,221,129,388.13
  5. Step 5: Solve for x
    x = 25,221,129,388.13/181,345.77
  6. Step 6: Final answer
    x = 139,077.57

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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.