Home / 222,154.09-306,565.01-126,691.51

Finding the Fourth Proportional to 222,154.09, 306,565.01 and 126,691.51

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Solution

The fourth proportional to 222,154.09, 306,565.01 and 126,691.51 is: 174,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,154.09 : 306,565.01 = 126,691.51 : x
  2. Step 2: Convert to fraction form
    222,154.09/306,565.01 = 126,691.51/x
  3. Step 3: Cross multiply
    222,154.09x = 306,565.01 × 126,691.51
  4. Step 4: Simplify right side
    222,154.09x = 38,839,182,813.97
  5. Step 5: Solve for x
    x = 38,839,182,813.97/222,154.09
  6. Step 6: Final answer
    x = 174,829.93

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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.