Home / 102,109.69-153,165.93-38,933.20

Finding the Fourth Proportional to 102,109.69, 153,165.93 and 38,933.20

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Solution

The fourth proportional to 102,109.69, 153,165.93 and 38,933.20 is: 58,400.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,109.69 : 153,165.93 = 38,933.20 : x
  2. Step 2: Convert to fraction form
    102,109.69/153,165.93 = 38,933.20/x
  3. Step 3: Cross multiply
    102,109.69x = 153,165.93 × 38,933.20
  4. Step 4: Simplify right side
    102,109.69x = 5,963,239,785.88
  5. Step 5: Solve for x
    x = 5,963,239,785.88/102,109.69
  6. Step 6: Final answer
    x = 58,400.33

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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.