Home / 123,769.80-170,802.21-67,181.16

Finding the Fourth Proportional to 123,769.80, 170,802.21 and 67,181.16

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Solution

The fourth proportional to 123,769.80, 170,802.21 and 67,181.16 is: 92,709.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,769.80 : 170,802.21 = 67,181.16 : x
  2. Step 2: Convert to fraction form
    123,769.80/170,802.21 = 67,181.16/x
  3. Step 3: Cross multiply
    123,769.80x = 170,802.21 × 67,181.16
  4. Step 4: Simplify right side
    123,769.80x = 11,474,690,598.36
  5. Step 5: Solve for x
    x = 11,474,690,598.36/123,769.80
  6. Step 6: Final answer
    x = 92,709.94

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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.