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Finding the Fourth Proportional to 126,571.66, 174,672.40 and 69,985.06

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Solution

The fourth proportional to 126,571.66, 174,672.40 and 69,985.06 is: 96,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,571.66 : 174,672.40 = 69,985.06 : x
  2. Step 2: Convert to fraction form
    126,571.66/174,672.40 = 69,985.06/x
  3. Step 3: Cross multiply
    126,571.66x = 174,672.40 × 69,985.06
  4. Step 4: Simplify right side
    126,571.66x = 12,224,458,394.34
  5. Step 5: Solve for x
    x = 12,224,458,394.34/126,571.66
  6. Step 6: Final answer
    x = 96,581.32

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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.