Home / 161,386.62-222,710.34-89,765.10

Finding the Fourth Proportional to 161,386.62, 222,710.34 and 89,765.10

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Solution

The fourth proportional to 161,386.62, 222,710.34 and 89,765.10 is: 123,874.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,386.62 : 222,710.34 = 89,765.10 : x
  2. Step 2: Convert to fraction form
    161,386.62/222,710.34 = 89,765.10/x
  3. Step 3: Cross multiply
    161,386.62x = 222,710.34 × 89,765.10
  4. Step 4: Simplify right side
    161,386.62x = 19,991,615,941.13
  5. Step 5: Solve for x
    x = 19,991,615,941.13/161,386.62
  6. Step 6: Final answer
    x = 123,874.06

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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.