Home / 109,176.10-150,665.96-61,431.14

Finding the Fourth Proportional to 109,176.10, 150,665.96 and 61,431.14

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Solution

The fourth proportional to 109,176.10, 150,665.96 and 61,431.14 is: 84,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,176.10 : 150,665.96 = 61,431.14 : x
  2. Step 2: Convert to fraction form
    109,176.10/150,665.96 = 61,431.14/x
  3. Step 3: Cross multiply
    109,176.10x = 150,665.96 × 61,431.14
  4. Step 4: Simplify right side
    109,176.10x = 9,255,581,681.99
  5. Step 5: Solve for x
    x = 9,255,581,681.99/109,176.10
  6. Step 6: Final answer
    x = 84,776.63

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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.