Home / 135,278.31-186,602.74-89,338.38

Finding the Fourth Proportional to 135,278.31, 186,602.74 and 89,338.38

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Solution

The fourth proportional to 135,278.31, 186,602.74 and 89,338.38 is: 123,233.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,278.31 : 186,602.74 = 89,338.38 : x
  2. Step 2: Convert to fraction form
    135,278.31/186,602.74 = 89,338.38/x
  3. Step 3: Cross multiply
    135,278.31x = 186,602.74 × 89,338.38
  4. Step 4: Simplify right side
    135,278.31x = 16,670,785,572.06
  5. Step 5: Solve for x
    x = 16,670,785,572.06/135,278.31
  6. Step 6: Final answer
    x = 123,233.24

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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.