Home / 140,470.32-210,699.86-77,415.44

Finding the Fourth Proportional to 140,470.32, 210,699.86 and 77,415.44

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Solution

The fourth proportional to 140,470.32, 210,699.86 and 77,415.44 is: 116,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,470.32 : 210,699.86 = 77,415.44 : x
  2. Step 2: Convert to fraction form
    140,470.32/210,699.86 = 77,415.44/x
  3. Step 3: Cross multiply
    140,470.32x = 210,699.86 × 77,415.44
  4. Step 4: Simplify right side
    140,470.32x = 16,311,422,369.84
  5. Step 5: Solve for x
    x = 16,311,422,369.84/140,470.32
  6. Step 6: Final answer
    x = 116,120.06

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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.