Home / 126,291.12-174,280.56-69,701.28

Finding the Fourth Proportional to 126,291.12, 174,280.56 and 69,701.28

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Solution

The fourth proportional to 126,291.12, 174,280.56 and 69,701.28 is: 96,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,291.12 : 174,280.56 = 69,701.28 : x
  2. Step 2: Convert to fraction form
    126,291.12/174,280.56 = 69,701.28/x
  3. Step 3: Cross multiply
    126,291.12x = 174,280.56 × 69,701.28
  4. Step 4: Simplify right side
    126,291.12x = 12,147,578,111.12
  5. Step 5: Solve for x
    x = 12,147,578,111.12/126,291.12
  6. Step 6: Final answer
    x = 96,187.11

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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.