Home / 113,009.78-169,519.47-38,131.70

Finding the Fourth Proportional to 113,009.78, 169,519.47 and 38,131.70

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Solution

The fourth proportional to 113,009.78, 169,519.47 and 38,131.70 is: 57,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,009.78 : 169,519.47 = 38,131.70 : x
  2. Step 2: Convert to fraction form
    113,009.78/169,519.47 = 38,131.70/x
  3. Step 3: Cross multiply
    113,009.78x = 169,519.47 × 38,131.70
  4. Step 4: Simplify right side
    113,009.78x = 6,464,065,574.20
  5. Step 5: Solve for x
    x = 6,464,065,574.20/113,009.78
  6. Step 6: Final answer
    x = 57,199.17

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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.