Home / 505,769.10-758,653.65-131,792.10

Finding the Fourth Proportional to 505,769.10, 758,653.65 and 131,792.10

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Solution

The fourth proportional to 505,769.10, 758,653.65 and 131,792.10 is: 197,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,769.10 : 758,653.65 = 131,792.10 : x
  2. Step 2: Convert to fraction form
    505,769.10/758,653.65 = 131,792.10/x
  3. Step 3: Cross multiply
    505,769.10x = 758,653.65 × 131,792.10
  4. Step 4: Simplify right side
    505,769.10x = 99,984,557,706.17
  5. Step 5: Solve for x
    x = 99,984,557,706.17/505,769.10
  6. Step 6: Final answer
    x = 197,688.15

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Similar ratio
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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.