Home / 154,350.86-212,936.60-90,659.94

Finding the Fourth Proportional to 154,350.86, 212,936.60 and 90,659.94

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Solution

The fourth proportional to 154,350.86, 212,936.60 and 90,659.94 is: 125,071.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,350.86 : 212,936.60 = 90,659.94 : x
  2. Step 2: Convert to fraction form
    154,350.86/212,936.60 = 90,659.94/x
  3. Step 3: Cross multiply
    154,350.86x = 212,936.60 × 90,659.94
  4. Step 4: Simplify right side
    154,350.86x = 19,304,818,926.50
  5. Step 5: Solve for x
    x = 19,304,818,926.50/154,350.86
  6. Step 6: Final answer
    x = 125,071.02

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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.