Home / 161,275.15-222,573.17-89,661.84

Finding the Fourth Proportional to 161,275.15, 222,573.17 and 89,661.84

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Solution

The fourth proportional to 161,275.15, 222,573.17 and 89,661.84 is: 123,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,275.15 : 222,573.17 = 89,661.84 : x
  2. Step 2: Convert to fraction form
    161,275.15/222,573.17 = 89,661.84/x
  3. Step 3: Cross multiply
    161,275.15x = 222,573.17 × 89,661.84
  4. Step 4: Simplify right side
    161,275.15x = 19,956,318,395.66
  5. Step 5: Solve for x
    x = 19,956,318,395.66/161,275.15
  6. Step 6: Final answer
    x = 123,740.81

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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.