Home / 141,926.05-212,648.07-85,647.90

Finding the Fourth Proportional to 141,926.05, 212,648.07 and 85,647.90

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Solution

The fourth proportional to 141,926.05, 212,648.07 and 85,647.90 is: 128,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,926.05 : 212,648.07 = 85,647.90 : x
  2. Step 2: Convert to fraction form
    141,926.05/212,648.07 = 85,647.90/x
  3. Step 3: Cross multiply
    141,926.05x = 212,648.07 × 85,647.90
  4. Step 4: Simplify right side
    141,926.05x = 18,212,860,557.02
  5. Step 5: Solve for x
    x = 18,212,860,557.02/141,926.05
  6. Step 6: Final answer
    x = 128,326.41

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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.