Home / 190,432.62-262,805.31-105,549.75

Finding the Fourth Proportional to 190,432.62, 262,805.31 and 105,549.75

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Solution

The fourth proportional to 190,432.62, 262,805.31 and 105,549.75 is: 145,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,432.62 : 262,805.31 = 105,549.75 : x
  2. Step 2: Convert to fraction form
    190,432.62/262,805.31 = 105,549.75/x
  3. Step 3: Cross multiply
    190,432.62x = 262,805.31 × 105,549.75
  4. Step 4: Simplify right side
    190,432.62x = 27,739,034,769.17
  5. Step 5: Solve for x
    x = 27,739,034,769.17/190,432.62
  6. Step 6: Final answer
    x = 145,663.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.