Home / 143,067.04-197,425.47-78,534.70

Finding the Fourth Proportional to 143,067.04, 197,425.47 and 78,534.70

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Solution

The fourth proportional to 143,067.04, 197,425.47 and 78,534.70 is: 108,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,067.04 : 197,425.47 = 78,534.70 : x
  2. Step 2: Convert to fraction form
    143,067.04/197,425.47 = 78,534.70/x
  3. Step 3: Cross multiply
    143,067.04x = 197,425.47 × 78,534.70
  4. Step 4: Simplify right side
    143,067.04x = 15,504,750,058.81
  5. Step 5: Solve for x
    x = 15,504,750,058.81/143,067.04
  6. Step 6: Final answer
    x = 108,374.02

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1.5x scale

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.