Home / 181,212.16-250,065.36-100,643.20

Finding the Fourth Proportional to 181,212.16, 250,065.36 and 100,643.20

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Solution

The fourth proportional to 181,212.16, 250,065.36 and 100,643.20 is: 138,883.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,212.16 : 250,065.36 = 100,643.20 : x
  2. Step 2: Convert to fraction form
    181,212.16/250,065.36 = 100,643.20/x
  3. Step 3: Cross multiply
    181,212.16x = 250,065.36 × 100,643.20
  4. Step 4: Simplify right side
    181,212.16x = 25,167,378,039.55
  5. Step 5: Solve for x
    x = 25,167,378,039.55/181,212.16
  6. Step 6: Final answer
    x = 138,883.49

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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.