Home / 161,281.72-222,556.17-89,657.38

Finding the Fourth Proportional to 161,281.72, 222,556.17 and 89,657.38

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Solution

The fourth proportional to 161,281.72, 222,556.17 and 89,657.38 is: 123,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,281.72 : 222,556.17 = 89,657.38 : x
  2. Step 2: Convert to fraction form
    161,281.72/222,556.17 = 89,657.38/x
  3. Step 3: Cross multiply
    161,281.72x = 222,556.17 × 89,657.38
  4. Step 4: Simplify right side
    161,281.72x = 19,953,803,215.12
  5. Step 5: Solve for x
    x = 19,953,803,215.12/161,281.72
  6. Step 6: Final answer
    x = 123,720.18

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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.