Home / 142,733.17-196,955.87-79,055.02

Finding the Fourth Proportional to 142,733.17, 196,955.87 and 79,055.02

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Solution

The fourth proportional to 142,733.17, 196,955.87 and 79,055.02 is: 109,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,733.17 : 196,955.87 = 79,055.02 : x
  2. Step 2: Convert to fraction form
    142,733.17/196,955.87 = 79,055.02/x
  3. Step 3: Cross multiply
    142,733.17x = 196,955.87 × 79,055.02
  4. Step 4: Simplify right side
    142,733.17x = 15,570,350,241.97
  5. Step 5: Solve for x
    x = 15,570,350,241.97/142,733.17
  6. Step 6: Final answer
    x = 109,087.12

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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.