Home / 212,701.13-319,102.61-60,900.32

Finding the Fourth Proportional to 212,701.13, 319,102.61 and 60,900.32

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Solution

The fourth proportional to 212,701.13, 319,102.61 and 60,900.32 is: 91,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,701.13 : 319,102.61 = 60,900.32 : x
  2. Step 2: Convert to fraction form
    212,701.13/319,102.61 = 60,900.32/x
  3. Step 3: Cross multiply
    212,701.13x = 319,102.61 × 60,900.32
  4. Step 4: Simplify right side
    212,701.13x = 19,433,449,161.82
  5. Step 5: Solve for x
    x = 19,433,449,161.82/212,701.13
  6. Step 6: Final answer
    x = 91,365.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.