Home / 140,679.64-211,040.32-40,840.66

Finding the Fourth Proportional to 140,679.64, 211,040.32 and 40,840.66

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Solution

The fourth proportional to 140,679.64, 211,040.32 and 40,840.66 is: 61,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,679.64 : 211,040.32 = 40,840.66 : x
  2. Step 2: Convert to fraction form
    140,679.64/211,040.32 = 40,840.66/x
  3. Step 3: Cross multiply
    140,679.64x = 211,040.32 × 40,840.66
  4. Step 4: Simplify right side
    140,679.64x = 8,619,025,955.41
  5. Step 5: Solve for x
    x = 8,619,025,955.41/140,679.64
  6. Step 6: Final answer
    x = 61,267.05

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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.