Home / 161,237.87-222,498.68-89,615.42

Finding the Fourth Proportional to 161,237.87, 222,498.68 and 89,615.42

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Solution

The fourth proportional to 161,237.87, 222,498.68 and 89,615.42 is: 123,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,237.87 : 222,498.68 = 89,615.42 : x
  2. Step 2: Convert to fraction form
    161,237.87/222,498.68 = 89,615.42/x
  3. Step 3: Cross multiply
    161,237.87x = 222,498.68 × 89,615.42
  4. Step 4: Simplify right side
    161,237.87x = 19,939,312,209.57
  5. Step 5: Solve for x
    x = 19,939,312,209.57/161,237.87
  6. Step 6: Final answer
    x = 123,663.95

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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.