Home / 109,475.40-163,953.90-74,224.20

Finding the Fourth Proportional to 109,475.40, 163,953.90 and 74,224.20

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Solution

The fourth proportional to 109,475.40, 163,953.90 and 74,224.20 is: 111,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,475.40 : 163,953.90 = 74,224.20 : x
  2. Step 2: Convert to fraction form
    109,475.40/163,953.90 = 74,224.20/x
  3. Step 3: Cross multiply
    109,475.40x = 163,953.90 × 74,224.20
  4. Step 4: Simplify right side
    109,475.40x = 12,169,347,064.38
  5. Step 5: Solve for x
    x = 12,169,347,064.38/109,475.40
  6. Step 6: Final answer
    x = 111,160.56

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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.