Home / 100,239.47-149,943.67-76,366.39

Finding the Fourth Proportional to 100,239.47, 149,943.67 and 76,366.39

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Solution

The fourth proportional to 100,239.47, 149,943.67 and 76,366.39 is: 114,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,239.47 : 149,943.67 = 76,366.39 : x
  2. Step 2: Convert to fraction form
    100,239.47/149,943.67 = 76,366.39/x
  3. Step 3: Cross multiply
    100,239.47x = 149,943.67 × 76,366.39
  4. Step 4: Simplify right side
    100,239.47x = 11,450,656,781.25
  5. Step 5: Solve for x
    x = 11,450,656,781.25/100,239.47
  6. Step 6: Final answer
    x = 114,233.01

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1.5x scale

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.