Home / 285,077.19-427,172.31-107,487.12

Finding the Fourth Proportional to 285,077.19, 427,172.31 and 107,487.12

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Solution

The fourth proportional to 285,077.19, 427,172.31 and 107,487.12 is: 161,063.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,077.19 : 427,172.31 = 107,487.12 : x
  2. Step 2: Convert to fraction form
    285,077.19/427,172.31 = 107,487.12/x
  3. Step 3: Cross multiply
    285,077.19x = 427,172.31 × 107,487.12
  4. Step 4: Simplify right side
    285,077.19x = 45,915,521,345.65
  5. Step 5: Solve for x
    x = 45,915,521,345.65/285,077.19
  6. Step 6: Final answer
    x = 161,063.47

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1.5x scale

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.