Home / 148,566.72-205,021.44-81,497.28

Finding the Fourth Proportional to 148,566.72, 205,021.44 and 81,497.28

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Solution

The fourth proportional to 148,566.72, 205,021.44 and 81,497.28 is: 112,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,566.72 : 205,021.44 = 81,497.28 : x
  2. Step 2: Convert to fraction form
    148,566.72/205,021.44 = 81,497.28/x
  3. Step 3: Cross multiply
    148,566.72x = 205,021.44 × 81,497.28
  4. Step 4: Simplify right side
    148,566.72x = 16,708,689,701.68
  5. Step 5: Solve for x
    x = 16,708,689,701.68/148,566.72
  6. Step 6: Final answer
    x = 112,465.90

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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.