Home / 140,631.12-210,851.64-74,000.52

Finding the Fourth Proportional to 140,631.12, 210,851.64 and 74,000.52

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Solution

The fourth proportional to 140,631.12, 210,851.64 and 74,000.52 is: 110,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631.12 : 210,851.64 = 74,000.52 : x
  2. Step 2: Convert to fraction form
    140,631.12/210,851.64 = 74,000.52/x
  3. Step 3: Cross multiply
    140,631.12x = 210,851.64 × 74,000.52
  4. Step 4: Simplify right side
    140,631.12x = 15,603,131,002.85
  5. Step 5: Solve for x
    x = 15,603,131,002.85/140,631.12
  6. Step 6: Final answer
    x = 110,950.77

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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.