Home / 145,223.24-200,398.20-81,566.96

Finding the Fourth Proportional to 145,223.24, 200,398.20 and 81,566.96

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Solution

The fourth proportional to 145,223.24, 200,398.20 and 81,566.96 is: 112,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,223.24 : 200,398.20 = 81,566.96 : x
  2. Step 2: Convert to fraction form
    145,223.24/200,398.20 = 81,566.96/x
  3. Step 3: Cross multiply
    145,223.24x = 200,398.20 × 81,566.96
  4. Step 4: Simplify right side
    145,223.24x = 16,345,871,963.47
  5. Step 5: Solve for x
    x = 16,345,871,963.47/145,223.24
  6. Step 6: Final answer
    x = 112,556.86

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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.