Home / 204,895.10-307,132.15-78,501.08

Finding the Fourth Proportional to 204,895.10, 307,132.15 and 78,501.08

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Solution

The fourth proportional to 204,895.10, 307,132.15 and 78,501.08 is: 117,670.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,895.10 : 307,132.15 = 78,501.08 : x
  2. Step 2: Convert to fraction form
    204,895.10/307,132.15 = 78,501.08/x
  3. Step 3: Cross multiply
    204,895.10x = 307,132.15 × 78,501.08
  4. Step 4: Simplify right side
    204,895.10x = 24,110,205,477.72
  5. Step 5: Solve for x
    x = 24,110,205,477.72/204,895.10
  6. Step 6: Final answer
    x = 117,670.97

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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.