Home / 142,607.44-196,931.62-91,708.56

Finding the Fourth Proportional to 142,607.44, 196,931.62 and 91,708.56

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Solution

The fourth proportional to 142,607.44, 196,931.62 and 91,708.56 is: 126,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,607.44 : 196,931.62 = 91,708.56 : x
  2. Step 2: Convert to fraction form
    142,607.44/196,931.62 = 91,708.56/x
  3. Step 3: Cross multiply
    142,607.44x = 196,931.62 × 91,708.56
  4. Step 4: Simplify right side
    142,607.44x = 18,060,315,288.67
  5. Step 5: Solve for x
    x = 18,060,315,288.67/142,607.44
  6. Step 6: Final answer
    x = 126,643.57

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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.