Home / 161,140.40-222,409.32-89,545.04

Finding the Fourth Proportional to 161,140.40, 222,409.32 and 89,545.04

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Solution

The fourth proportional to 161,140.40, 222,409.32 and 89,545.04 is: 123,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,140.40 : 222,409.32 = 89,545.04 : x
  2. Step 2: Convert to fraction form
    161,140.40/222,409.32 = 89,545.04/x
  3. Step 3: Cross multiply
    161,140.40x = 222,409.32 × 89,545.04
  4. Step 4: Simplify right side
    161,140.40x = 19,915,651,455.77
  5. Step 5: Solve for x
    x = 19,915,651,455.77/161,140.40
  6. Step 6: Final answer
    x = 123,591.92

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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.