Home / 142,925.70-197,249.58-79,284

Finding the Fourth Proportional to 142,925.70, 197,249.58 and 79,284

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Solution

The fourth proportional to 142,925.70, 197,249.58 and 79,284 is: 109,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,925.70 : 197,249.58 = 79,284 : x
  2. Step 2: Convert to fraction form
    142,925.70/197,249.58 = 79,284/x
  3. Step 3: Cross multiply
    142,925.70x = 197,249.58 × 79,284
  4. Step 4: Simplify right side
    142,925.70x = 15,638,735,700.72
  5. Step 5: Solve for x
    x = 15,638,735,700.72/142,925.70
  6. Step 6: Final answer
    x = 109,418.64

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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.