Home / 161,257.94-222,543.55-89,639.16

Finding the Fourth Proportional to 161,257.94, 222,543.55 and 89,639.16

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Solution

The fourth proportional to 161,257.94, 222,543.55 and 89,639.16 is: 123,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,257.94 : 222,543.55 = 89,639.16 : x
  2. Step 2: Convert to fraction form
    161,257.94/222,543.55 = 89,639.16/x
  3. Step 3: Cross multiply
    161,257.94x = 222,543.55 × 89,639.16
  4. Step 4: Simplify right side
    161,257.94x = 19,948,616,162.93
  5. Step 5: Solve for x
    x = 19,948,616,162.93/161,257.94
  6. Step 6: Final answer
    x = 123,706.26

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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.