Home / 154,049.47-212,551.84-89,480.34

Finding the Fourth Proportional to 154,049.47, 212,551.84 and 89,480.34

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Solution

The fourth proportional to 154,049.47, 212,551.84 and 89,480.34 is: 123,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,049.47 : 212,551.84 = 89,480.34 : x
  2. Step 2: Convert to fraction form
    154,049.47/212,551.84 = 89,480.34/x
  3. Step 3: Cross multiply
    154,049.47x = 212,551.84 × 89,480.34
  4. Step 4: Simplify right side
    154,049.47x = 19,019,211,022.68
  5. Step 5: Solve for x
    x = 19,019,211,022.68/154,049.47
  6. Step 6: Final answer
    x = 123,461.71

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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.