Home / 142,975.08-197,298.66-79,307.24

Finding the Fourth Proportional to 142,975.08, 197,298.66 and 79,307.24

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Solution

The fourth proportional to 142,975.08, 197,298.66 and 79,307.24 is: 109,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,975.08 : 197,298.66 = 79,307.24 : x
  2. Step 2: Convert to fraction form
    142,975.08/197,298.66 = 79,307.24/x
  3. Step 3: Cross multiply
    142,975.08x = 197,298.66 × 79,307.24
  4. Step 4: Simplify right side
    142,975.08x = 15,647,212,180.30
  5. Step 5: Solve for x
    x = 15,647,212,180.30/142,975.08
  6. Step 6: Final answer
    x = 109,440.14

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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.