Home / 142,854.14-197,110.94-84,700.12

Finding the Fourth Proportional to 142,854.14, 197,110.94 and 84,700.12

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Solution

The fourth proportional to 142,854.14, 197,110.94 and 84,700.12 is: 116,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,854.14 : 197,110.94 = 84,700.12 : x
  2. Step 2: Convert to fraction form
    142,854.14/197,110.94 = 84,700.12/x
  3. Step 3: Cross multiply
    142,854.14x = 197,110.94 × 84,700.12
  4. Step 4: Simplify right side
    142,854.14x = 16,695,320,729.45
  5. Step 5: Solve for x
    x = 16,695,320,729.45/142,854.14
  6. Step 6: Final answer
    x = 116,869.71

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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.