Home / 142,829.76-196,656.34-121,274.58

Finding the Fourth Proportional to 142,829.76, 196,656.34 and 121,274.58

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Solution

The fourth proportional to 142,829.76, 196,656.34 and 121,274.58 is: 166,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,829.76 : 196,656.34 = 121,274.58 : x
  2. Step 2: Convert to fraction form
    142,829.76/196,656.34 = 121,274.58/x
  3. Step 3: Cross multiply
    142,829.76x = 196,656.34 × 121,274.58
  4. Step 4: Simplify right side
    142,829.76x = 23,849,414,431.46
  5. Step 5: Solve for x
    x = 23,849,414,431.46/142,829.76
  6. Step 6: Final answer
    x = 166,977.91

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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.