Home / 154,236.97-212,838.15-85,322.29

Finding the Fourth Proportional to 154,236.97, 212,838.15 and 85,322.29

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Solution

The fourth proportional to 154,236.97, 212,838.15 and 85,322.29 is: 117,739.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,236.97 : 212,838.15 = 85,322.29 : x
  2. Step 2: Convert to fraction form
    154,236.97/212,838.15 = 85,322.29/x
  3. Step 3: Cross multiply
    154,236.97x = 212,838.15 × 85,322.29
  4. Step 4: Simplify right side
    154,236.97x = 18,159,838,357.36
  5. Step 5: Solve for x
    x = 18,159,838,357.36/154,236.97
  6. Step 6: Final answer
    x = 117,739.85

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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.