Home / 205,587.18-308,331.39-70,635.60

Finding the Fourth Proportional to 205,587.18, 308,331.39 and 70,635.60

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Solution

The fourth proportional to 205,587.18, 308,331.39 and 70,635.60 is: 105,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,587.18 : 308,331.39 = 70,635.60 : x
  2. Step 2: Convert to fraction form
    205,587.18/308,331.39 = 70,635.60/x
  3. Step 3: Cross multiply
    205,587.18x = 308,331.39 × 70,635.60
  4. Step 4: Simplify right side
    205,587.18x = 21,779,172,731.48
  5. Step 5: Solve for x
    x = 21,779,172,731.48/205,587.18
  6. Step 6: Final answer
    x = 105,936.43

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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.