Home / 105,251.21-157,770.43-45,318.77

Finding the Fourth Proportional to 105,251.21, 157,770.43 and 45,318.77

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Solution

The fourth proportional to 105,251.21, 157,770.43 and 45,318.77 is: 67,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,251.21 : 157,770.43 = 45,318.77 : x
  2. Step 2: Convert to fraction form
    105,251.21/157,770.43 = 45,318.77/x
  3. Step 3: Cross multiply
    105,251.21x = 157,770.43 × 45,318.77
  4. Step 4: Simplify right side
    105,251.21x = 7,149,960,927.82
  5. Step 5: Solve for x
    x = 7,149,960,927.82/105,251.21
  6. Step 6: Final answer
    x = 67,932.34

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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.