Home / 123,911.28-170,999.67-67,322.70

Finding the Fourth Proportional to 123,911.28, 170,999.67 and 67,322.70

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Solution

The fourth proportional to 123,911.28, 170,999.67 and 67,322.70 is: 92,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,911.28 : 170,999.67 = 67,322.70 : x
  2. Step 2: Convert to fraction form
    123,911.28/170,999.67 = 67,322.70/x
  3. Step 3: Cross multiply
    123,911.28x = 170,999.67 × 67,322.70
  4. Step 4: Simplify right side
    123,911.28x = 11,512,159,483.51
  5. Step 5: Solve for x
    x = 11,512,159,483.51/123,911.28
  6. Step 6: Final answer
    x = 92,906.47

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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.