Home / 142,776.73-197,006.88-81,494.93

Finding the Fourth Proportional to 142,776.73, 197,006.88 and 81,494.93

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Solution

The fourth proportional to 142,776.73, 197,006.88 and 81,494.93 is: 112,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,776.73 : 197,006.88 = 81,494.93 : x
  2. Step 2: Convert to fraction form
    142,776.73/197,006.88 = 81,494.93/x
  3. Step 3: Cross multiply
    142,776.73x = 197,006.88 × 81,494.93
  4. Step 4: Simplify right side
    142,776.73x = 16,055,061,585.08
  5. Step 5: Solve for x
    x = 16,055,061,585.08/142,776.73
  6. Step 6: Final answer
    x = 112,448.73

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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.