Home / 161,432.47-222,779.79-89,819.17

Finding the Fourth Proportional to 161,432.47, 222,779.79 and 89,819.17

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Solution

The fourth proportional to 161,432.47, 222,779.79 and 89,819.17 is: 123,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,432.47 : 222,779.79 = 89,819.17 : x
  2. Step 2: Convert to fraction form
    161,432.47/222,779.79 = 89,819.17/x
  3. Step 3: Cross multiply
    161,432.47x = 222,779.79 × 89,819.17
  4. Step 4: Simplify right side
    161,432.47x = 20,009,895,830.57
  5. Step 5: Solve for x
    x = 20,009,895,830.57/161,432.47
  6. Step 6: Final answer
    x = 123,952.11

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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.