Home / 142,885.92-197,184.96-79,226.40

Finding the Fourth Proportional to 142,885.92, 197,184.96 and 79,226.40

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Solution

The fourth proportional to 142,885.92, 197,184.96 and 79,226.40 is: 109,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,885.92 : 197,184.96 = 79,226.40 : x
  2. Step 2: Convert to fraction form
    142,885.92/197,184.96 = 79,226.40/x
  3. Step 3: Cross multiply
    142,885.92x = 197,184.96 × 79,226.40
  4. Step 4: Simplify right side
    142,885.92x = 15,622,254,514.94
  5. Step 5: Solve for x
    x = 15,622,254,514.94/142,885.92
  6. Step 6: Final answer
    x = 109,333.76

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1.5x scale

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.