Home / 145,338.91-200,566.43-81,676.55

Finding the Fourth Proportional to 145,338.91, 200,566.43 and 81,676.55

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Solution

The fourth proportional to 145,338.91, 200,566.43 and 81,676.55 is: 112,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,338.91 : 200,566.43 = 81,676.55 : x
  2. Step 2: Convert to fraction form
    145,338.91/200,566.43 = 81,676.55/x
  3. Step 3: Cross multiply
    145,338.91x = 200,566.43 × 81,676.55
  4. Step 4: Simplify right side
    145,338.91x = 16,381,574,447.54
  5. Step 5: Solve for x
    x = 16,381,574,447.54/145,338.91
  6. Step 6: Final answer
    x = 112,712.93

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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.