Home / 154,350.60-212,936.25-90,659.69

Finding the Fourth Proportional to 154,350.60, 212,936.25 and 90,659.69

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Solution

The fourth proportional to 154,350.60, 212,936.25 and 90,659.69 is: 125,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,350.60 : 212,936.25 = 90,659.69 : x
  2. Step 2: Convert to fraction form
    154,350.60/212,936.25 = 90,659.69/x
  3. Step 3: Cross multiply
    154,350.60x = 212,936.25 × 90,659.69
  4. Step 4: Simplify right side
    154,350.60x = 19,304,733,961.46
  5. Step 5: Solve for x
    x = 19,304,733,961.46/154,350.60
  6. Step 6: Final answer
    x = 125,070.68

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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.