Home / 99,890.62-149,835.39-40,726.06

Finding the Fourth Proportional to 99,890.62, 149,835.39 and 40,726.06

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Solution

The fourth proportional to 99,890.62, 149,835.39 and 40,726.06 is: 61,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,890.62 : 149,835.39 = 40,726.06 : x
  2. Step 2: Convert to fraction form
    99,890.62/149,835.39 = 40,726.06/x
  3. Step 3: Cross multiply
    99,890.62x = 149,835.39 × 40,726.06
  4. Step 4: Simplify right side
    99,890.62x = 6,102,205,083.26
  5. Step 5: Solve for x
    x = 6,102,205,083.26/99,890.62
  6. Step 6: Final answer
    x = 61,088.87

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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.