Home / 181,853.39-251,061.78-121,526.21

Finding the Fourth Proportional to 181,853.39, 251,061.78 and 121,526.21

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Solution

The fourth proportional to 181,853.39, 251,061.78 and 121,526.21 is: 167,775.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,853.39 : 251,061.78 = 121,526.21 : x
  2. Step 2: Convert to fraction form
    181,853.39/251,061.78 = 121,526.21/x
  3. Step 3: Cross multiply
    181,853.39x = 251,061.78 × 121,526.21
  4. Step 4: Simplify right side
    181,853.39x = 30,510,585,343.94
  5. Step 5: Solve for x
    x = 30,510,585,343.94/181,853.39
  6. Step 6: Final answer
    x = 167,775.74

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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.