Home / 135,433.46-186,929.28-90,113.36

Finding the Fourth Proportional to 135,433.46, 186,929.28 and 90,113.36

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Solution

The fourth proportional to 135,433.46, 186,929.28 and 90,113.36 is: 124,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.46 : 186,929.28 = 90,113.36 : x
  2. Step 2: Convert to fraction form
    135,433.46/186,929.28 = 90,113.36/x
  3. Step 3: Cross multiply
    135,433.46x = 186,929.28 × 90,113.36
  4. Step 4: Simplify right side
    135,433.46x = 16,844,824,568.53
  5. Step 5: Solve for x
    x = 16,844,824,568.53/135,433.46
  6. Step 6: Final answer
    x = 124,377.12

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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.