Home / 99,727.30-149,453.74-42,732.98

Finding the Fourth Proportional to 99,727.30, 149,453.74 and 42,732.98

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Solution

The fourth proportional to 99,727.30, 149,453.74 and 42,732.98 is: 64,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.30 : 149,453.74 = 42,732.98 : x
  2. Step 2: Convert to fraction form
    99,727.30/149,453.74 = 42,732.98/x
  3. Step 3: Cross multiply
    99,727.30x = 149,453.74 × 42,732.98
  4. Step 4: Simplify right side
    99,727.30x = 6,386,603,682.35
  5. Step 5: Solve for x
    x = 6,386,603,682.35/99,727.30
  6. Step 6: Final answer
    x = 64,040.68

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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.