Home / 154,299.53-212,976.18-89,781.23

Finding the Fourth Proportional to 154,299.53, 212,976.18 and 89,781.23

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Solution

The fourth proportional to 154,299.53, 212,976.18 and 89,781.23 is: 123,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,299.53 : 212,976.18 = 89,781.23 : x
  2. Step 2: Convert to fraction form
    154,299.53/212,976.18 = 89,781.23/x
  3. Step 3: Cross multiply
    154,299.53x = 212,976.18 × 89,781.23
  4. Step 4: Simplify right side
    154,299.53x = 19,121,262,336.22
  5. Step 5: Solve for x
    x = 19,121,262,336.22/154,299.53
  6. Step 6: Final answer
    x = 123,923.01

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1.5x scale

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.