Home / 97,723.31-146,437.34-72,645.71

Finding the Fourth Proportional to 97,723.31, 146,437.34 and 72,645.71

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Solution

The fourth proportional to 97,723.31, 146,437.34 and 72,645.71 is: 108,858.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,723.31 : 146,437.34 = 72,645.71 : x
  2. Step 2: Convert to fraction form
    97,723.31/146,437.34 = 72,645.71/x
  3. Step 3: Cross multiply
    97,723.31x = 146,437.34 × 72,645.71
  4. Step 4: Simplify right side
    97,723.31x = 10,638,043,439.40
  5. Step 5: Solve for x
    x = 10,638,043,439.40/97,723.31
  6. Step 6: Final answer
    x = 108,858.82

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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.