Home / 142,743.84-196,895.16-91,739.22

Finding the Fourth Proportional to 142,743.84, 196,895.16 and 91,739.22

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Solution

The fourth proportional to 142,743.84, 196,895.16 and 91,739.22 is: 126,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,743.84 : 196,895.16 = 91,739.22 : x
  2. Step 2: Convert to fraction form
    142,743.84/196,895.16 = 91,739.22/x
  3. Step 3: Cross multiply
    142,743.84x = 196,895.16 × 91,739.22
  4. Step 4: Simplify right side
    142,743.84x = 18,063,008,400.18
  5. Step 5: Solve for x
    x = 18,063,008,400.18/142,743.84
  6. Step 6: Final answer
    x = 126,541.42

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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.