Home / 135,433.45-186,929.27-90,113.34

Finding the Fourth Proportional to 135,433.45, 186,929.27 and 90,113.34

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Solution

The fourth proportional to 135,433.45, 186,929.27 and 90,113.34 is: 124,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.45 : 186,929.27 = 90,113.34 : x
  2. Step 2: Convert to fraction form
    135,433.45/186,929.27 = 90,113.34/x
  3. Step 3: Cross multiply
    135,433.45x = 186,929.27 × 90,113.34
  4. Step 4: Simplify right side
    135,433.45x = 16,844,821,451.80
  5. Step 5: Solve for x
    x = 16,844,821,451.80/135,433.45
  6. Step 6: Final answer
    x = 124,377.11

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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.