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Finding the Fourth Proportional to 126,365.88, 174,386.22 and 69,777.12

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Solution

The fourth proportional to 126,365.88, 174,386.22 and 69,777.12 is: 96,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,365.88 : 174,386.22 = 69,777.12 : x
  2. Step 2: Convert to fraction form
    126,365.88/174,386.22 = 69,777.12/x
  3. Step 3: Cross multiply
    126,365.88x = 174,386.22 × 69,777.12
  4. Step 4: Simplify right side
    126,365.88x = 12,168,168,199.29
  5. Step 5: Solve for x
    x = 12,168,168,199.29/126,365.88
  6. Step 6: Final answer
    x = 96,293.15

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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.