Home / 135,433.39-186,929.18-90,113.28

Finding the Fourth Proportional to 135,433.39, 186,929.18 and 90,113.28

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Solution

The fourth proportional to 135,433.39, 186,929.18 and 90,113.28 is: 124,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.39 : 186,929.18 = 90,113.28 : x
  2. Step 2: Convert to fraction form
    135,433.39/186,929.18 = 90,113.28/x
  3. Step 3: Cross multiply
    135,433.39x = 186,929.18 × 90,113.28
  4. Step 4: Simplify right side
    135,433.39x = 16,844,801,537.51
  5. Step 5: Solve for x
    x = 16,844,801,537.51/135,433.39
  6. Step 6: Final answer
    x = 124,377.02

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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.