Home / 126,139.72-174,072.66-69,551.20

Finding the Fourth Proportional to 126,139.72, 174,072.66 and 69,551.20

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Solution

The fourth proportional to 126,139.72, 174,072.66 and 69,551.20 is: 95,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,139.72 : 174,072.66 = 69,551.20 : x
  2. Step 2: Convert to fraction form
    126,139.72/174,072.66 = 69,551.20/x
  3. Step 3: Cross multiply
    126,139.72x = 174,072.66 × 69,551.20
  4. Step 4: Simplify right side
    126,139.72x = 12,106,962,390.19
  5. Step 5: Solve for x
    x = 12,106,962,390.19/126,139.72
  6. Step 6: Final answer
    x = 95,980.57

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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.