Home / 420,061.20-630,090.48-104,518.08

Finding the Fourth Proportional to 420,061.20, 630,090.48 and 104,518.08

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Solution

The fourth proportional to 420,061.20, 630,090.48 and 104,518.08 is: 156,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,061.20 : 630,090.48 = 104,518.08 : x
  2. Step 2: Convert to fraction form
    420,061.20/630,090.48 = 104,518.08/x
  3. Step 3: Cross multiply
    420,061.20x = 630,090.48 × 104,518.08
  4. Step 4: Simplify right side
    420,061.20x = 65,855,847,195.88
  5. Step 5: Solve for x
    x = 65,855,847,195.88/420,061.20
  6. Step 6: Final answer
    x = 156,776.79

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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.