Home / 99,810.26-149,635.92-57,642.38

Finding the Fourth Proportional to 99,810.26, 149,635.92 and 57,642.38

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Solution

The fourth proportional to 99,810.26, 149,635.92 and 57,642.38 is: 86,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,810.26 : 149,635.92 = 57,642.38 : x
  2. Step 2: Convert to fraction form
    99,810.26/149,635.92 = 57,642.38/x
  3. Step 3: Cross multiply
    99,810.26x = 149,635.92 × 57,642.38
  4. Step 4: Simplify right side
    99,810.26x = 8,625,370,562.29
  5. Step 5: Solve for x
    x = 8,625,370,562.29/99,810.26
  6. Step 6: Final answer
    x = 86,417.67

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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.