Home / 100,260.08-138,349.71-57,810.41

Finding the Fourth Proportional to 100,260.08, 138,349.71 and 57,810.41

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Solution

The fourth proportional to 100,260.08, 138,349.71 and 57,810.41 is: 79,773.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,260.08 : 138,349.71 = 57,810.41 : x
  2. Step 2: Convert to fraction form
    100,260.08/138,349.71 = 57,810.41/x
  3. Step 3: Cross multiply
    100,260.08x = 138,349.71 × 57,810.41
  4. Step 4: Simplify right side
    100,260.08x = 7,998,053,458.48
  5. Step 5: Solve for x
    x = 7,998,053,458.48/100,260.08
  6. Step 6: Final answer
    x = 79,773.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.