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Finding the Fourth Proportional to 140,737.95, 211,120.79 and 40,899.02

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Solution

The fourth proportional to 140,737.95, 211,120.79 and 40,899.02 is: 61,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,737.95 : 211,120.79 = 40,899.02 : x
  2. Step 2: Convert to fraction form
    140,737.95/211,120.79 = 40,899.02/x
  3. Step 3: Cross multiply
    140,737.95x = 211,120.79 × 40,899.02
  4. Step 4: Simplify right side
    140,737.95x = 8,634,632,152.53
  5. Step 5: Solve for x
    x = 8,634,632,152.53/140,737.95
  6. Step 6: Final answer
    x = 61,352.55

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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.