Home / 272,766.16-409,090.92-85,733.92

Finding the Fourth Proportional to 272,766.16, 409,090.92 and 85,733.92

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Solution

The fourth proportional to 272,766.16, 409,090.92 and 85,733.92 is: 128,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,766.16 : 409,090.92 = 85,733.92 : x
  2. Step 2: Convert to fraction form
    272,766.16/409,090.92 = 85,733.92/x
  3. Step 3: Cross multiply
    272,766.16x = 409,090.92 × 85,733.92
  4. Step 4: Simplify right side
    272,766.16x = 35,072,968,208.01
  5. Step 5: Solve for x
    x = 35,072,968,208.01/272,766.16
  6. Step 6: Final answer
    x = 128,582.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.