Home / 159,655.18-220,338.94-91,681.06

Finding the Fourth Proportional to 159,655.18, 220,338.94 and 91,681.06

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Solution

The fourth proportional to 159,655.18, 220,338.94 and 91,681.06 is: 126,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,655.18 : 220,338.94 = 91,681.06 : x
  2. Step 2: Convert to fraction form
    159,655.18/220,338.94 = 91,681.06/x
  3. Step 3: Cross multiply
    159,655.18x = 220,338.94 × 91,681.06
  4. Step 4: Simplify right side
    159,655.18x = 20,200,907,578.48
  5. Step 5: Solve for x
    x = 20,200,907,578.48/159,655.18
  6. Step 6: Final answer
    x = 126,528.36

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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.