Home / 101,943.72-140,677.56-56,624.58

Finding the Fourth Proportional to 101,943.72, 140,677.56 and 56,624.58

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Solution

The fourth proportional to 101,943.72, 140,677.56 and 56,624.58 is: 78,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,943.72 : 140,677.56 = 56,624.58 : x
  2. Step 2: Convert to fraction form
    101,943.72/140,677.56 = 56,624.58/x
  3. Step 3: Cross multiply
    101,943.72x = 140,677.56 × 56,624.58
  4. Step 4: Simplify right side
    101,943.72x = 7,965,807,750.42
  5. Step 5: Solve for x
    x = 7,965,807,750.42/101,943.72
  6. Step 6: Final answer
    x = 78,139.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.