Home / 420,016.11-630,022.97-104,473.02

Finding the Fourth Proportional to 420,016.11, 630,022.97 and 104,473.02

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Solution

The fourth proportional to 420,016.11, 630,022.97 and 104,473.02 is: 156,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,016.11 : 630,022.97 = 104,473.02 : x
  2. Step 2: Convert to fraction form
    420,016.11/630,022.97 = 104,473.02/x
  3. Step 3: Cross multiply
    420,016.11x = 630,022.97 × 104,473.02
  4. Step 4: Simplify right side
    420,016.11x = 65,820,402,345.27
  5. Step 5: Solve for x
    x = 65,820,402,345.27/420,016.11
  6. Step 6: Final answer
    x = 156,709.23

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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.