Home / 109,074.60-163,544.87-42,437.12

Finding the Fourth Proportional to 109,074.60, 163,544.87 and 42,437.12

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Solution

The fourth proportional to 109,074.60, 163,544.87 and 42,437.12 is: 63,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,074.60 : 163,544.87 = 42,437.12 : x
  2. Step 2: Convert to fraction form
    109,074.60/163,544.87 = 42,437.12/x
  3. Step 3: Cross multiply
    109,074.60x = 163,544.87 × 42,437.12
  4. Step 4: Simplify right side
    109,074.60x = 6,940,372,561.94
  5. Step 5: Solve for x
    x = 6,940,372,561.94/109,074.60
  6. Step 6: Final answer
    x = 63,629.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.