Home / 109,171.06-163,749.21-42,598.78

Finding the Fourth Proportional to 109,171.06, 163,749.21 and 42,598.78

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Solution

The fourth proportional to 109,171.06, 163,749.21 and 42,598.78 is: 63,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,171.06 : 163,749.21 = 42,598.78 : x
  2. Step 2: Convert to fraction form
    109,171.06/163,749.21 = 42,598.78/x
  3. Step 3: Cross multiply
    109,171.06x = 163,749.21 × 42,598.78
  4. Step 4: Simplify right side
    109,171.06x = 6,975,516,571.96
  5. Step 5: Solve for x
    x = 6,975,516,571.96/109,171.06
  6. Step 6: Final answer
    x = 63,895.29

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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.