Home / 123,418.10-170,313.54-73,117.10

Finding the Fourth Proportional to 123,418.10, 170,313.54 and 73,117.10

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Solution

The fourth proportional to 123,418.10, 170,313.54 and 73,117.10 is: 100,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.10 : 170,313.54 = 73,117.10 : x
  2. Step 2: Convert to fraction form
    123,418.10/170,313.54 = 73,117.10/x
  3. Step 3: Cross multiply
    123,418.10x = 170,313.54 × 73,117.10
  4. Step 4: Simplify right side
    123,418.10x = 12,452,831,283.97
  5. Step 5: Solve for x
    x = 12,452,831,283.97/123,418.10
  6. Step 6: Final answer
    x = 100,899.56

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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.