Home / 142,719.60-196,953.24-79,056.08

Finding the Fourth Proportional to 142,719.60, 196,953.24 and 79,056.08

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Solution

The fourth proportional to 142,719.60, 196,953.24 and 79,056.08 is: 109,097.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,719.60 : 196,953.24 = 79,056.08 : x
  2. Step 2: Convert to fraction form
    142,719.60/196,953.24 = 79,056.08/x
  3. Step 3: Cross multiply
    142,719.60x = 196,953.24 × 79,056.08
  4. Step 4: Simplify right side
    142,719.60x = 15,570,351,097.70
  5. Step 5: Solve for x
    x = 15,570,351,097.70/142,719.60
  6. Step 6: Final answer
    x = 109,097.50

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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.