Home / 113,011.28-169,521.72-38,133.20

Finding the Fourth Proportional to 113,011.28, 169,521.72 and 38,133.20

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Solution

The fourth proportional to 113,011.28, 169,521.72 and 38,133.20 is: 57,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,011.28 : 169,521.72 = 38,133.20 : x
  2. Step 2: Convert to fraction form
    113,011.28/169,521.72 = 38,133.20/x
  3. Step 3: Cross multiply
    113,011.28x = 169,521.72 × 38,133.20
  4. Step 4: Simplify right side
    113,011.28x = 6,464,405,653.10
  5. Step 5: Solve for x
    x = 6,464,405,653.10/113,011.28
  6. Step 6: Final answer
    x = 57,201.42

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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.