Home / 281,331.63-421,997.58-123,561.45

Finding the Fourth Proportional to 281,331.63, 421,997.58 and 123,561.45

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Solution

The fourth proportional to 281,331.63, 421,997.58 and 123,561.45 is: 185,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,331.63 : 421,997.58 = 123,561.45 : x
  2. Step 2: Convert to fraction form
    281,331.63/421,997.58 = 123,561.45/x
  3. Step 3: Cross multiply
    281,331.63x = 421,997.58 × 123,561.45
  4. Step 4: Simplify right side
    281,331.63x = 52,142,632,881.29
  5. Step 5: Solve for x
    x = 52,142,632,881.29/281,331.63
  6. Step 6: Final answer
    x = 185,342.23

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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.