Home / 161,020.57-222,208.86-89,400.76

Finding the Fourth Proportional to 161,020.57, 222,208.86 and 89,400.76

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Solution

The fourth proportional to 161,020.57, 222,208.86 and 89,400.76 is: 123,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,020.57 : 222,208.86 = 89,400.76 : x
  2. Step 2: Convert to fraction form
    161,020.57/222,208.86 = 89,400.76/x
  3. Step 3: Cross multiply
    161,020.57x = 222,208.86 × 89,400.76
  4. Step 4: Simplify right side
    161,020.57x = 19,865,640,962.73
  5. Step 5: Solve for x
    x = 19,865,640,962.73/161,020.57
  6. Step 6: Final answer
    x = 123,373.31

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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.