Home / 109,228.10-163,836.68-30,343.01

Finding the Fourth Proportional to 109,228.10, 163,836.68 and 30,343.01

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Solution

The fourth proportional to 109,228.10, 163,836.68 and 30,343.01 is: 45,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,228.10 : 163,836.68 = 30,343.01 : x
  2. Step 2: Convert to fraction form
    109,228.10/163,836.68 = 30,343.01/x
  3. Step 3: Cross multiply
    109,228.10x = 163,836.68 × 30,343.01
  4. Step 4: Simplify right side
    109,228.10x = 4,971,297,048.71
  5. Step 5: Solve for x
    x = 4,971,297,048.71/109,228.10
  6. Step 6: Final answer
    x = 45,512.99

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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.