Home / 135,643.76-187,187.63-75,223.33

Finding the Fourth Proportional to 135,643.76, 187,187.63 and 75,223.33

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Solution

The fourth proportional to 135,643.76, 187,187.63 and 75,223.33 is: 103,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,643.76 : 187,187.63 = 75,223.33 : x
  2. Step 2: Convert to fraction form
    135,643.76/187,187.63 = 75,223.33/x
  3. Step 3: Cross multiply
    135,643.76x = 187,187.63 × 75,223.33
  4. Step 4: Simplify right side
    135,643.76x = 14,080,876,583.50
  5. Step 5: Solve for x
    x = 14,080,876,583.50/135,643.76
  6. Step 6: Final answer
    x = 103,807.77

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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.