Home / 126,869.68-174,996.16-81,605.16

Finding the Fourth Proportional to 126,869.68, 174,996.16 and 81,605.16

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Solution

The fourth proportional to 126,869.68, 174,996.16 and 81,605.16 is: 112,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,869.68 : 174,996.16 = 81,605.16 : x
  2. Step 2: Convert to fraction form
    126,869.68/174,996.16 = 81,605.16/x
  3. Step 3: Cross multiply
    126,869.68x = 174,996.16 × 81,605.16
  4. Step 4: Simplify right side
    126,869.68x = 14,280,589,636.19
  5. Step 5: Solve for x
    x = 14,280,589,636.19/126,869.68
  6. Step 6: Final answer
    x = 112,561.09

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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.