Home / 142,726.67-196,513.44-121,173.79

Finding the Fourth Proportional to 142,726.67, 196,513.44 and 121,173.79

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Solution

The fourth proportional to 142,726.67, 196,513.44 and 121,173.79 is: 166,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,726.67 : 196,513.44 = 121,173.79 : x
  2. Step 2: Convert to fraction form
    142,726.67/196,513.44 = 121,173.79/x
  3. Step 3: Cross multiply
    142,726.67x = 196,513.44 × 121,173.79
  4. Step 4: Simplify right side
    142,726.67x = 23,812,278,415.12
  5. Step 5: Solve for x
    x = 23,812,278,415.12/142,726.67
  6. Step 6: Final answer
    x = 166,838.32

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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.