Home / 109,319.32-150,856.72-61,577.11

Finding the Fourth Proportional to 109,319.32, 150,856.72 and 61,577.11

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Solution

The fourth proportional to 109,319.32, 150,856.72 and 61,577.11 is: 84,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,319.32 : 150,856.72 = 61,577.11 : x
  2. Step 2: Convert to fraction form
    109,319.32/150,856.72 = 61,577.11/x
  3. Step 3: Cross multiply
    109,319.32x = 150,856.72 × 61,577.11
  4. Step 4: Simplify right side
    109,319.32x = 9,289,320,841.68
  5. Step 5: Solve for x
    x = 9,289,320,841.68/109,319.32
  6. Step 6: Final answer
    x = 84,974.19

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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.