Home / 142,423.20-196,365.44-91,345.92

Finding the Fourth Proportional to 142,423.20, 196,365.44 and 91,345.92

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Solution

The fourth proportional to 142,423.20, 196,365.44 and 91,345.92 is: 125,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,423.20 : 196,365.44 = 91,345.92 : x
  2. Step 2: Convert to fraction form
    142,423.20/196,365.44 = 91,345.92/x
  3. Step 3: Cross multiply
    142,423.20x = 196,365.44 × 91,345.92
  4. Step 4: Simplify right side
    142,423.20x = 17,937,181,773.00
  5. Step 5: Solve for x
    x = 17,937,181,773.00/142,423.20
  6. Step 6: Final answer
    x = 125,942.84

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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.