Home / 185,712.90-256,284.51-100,829.94

Finding the Fourth Proportional to 185,712.90, 256,284.51 and 100,829.94

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Solution

The fourth proportional to 185,712.90, 256,284.51 and 100,829.94 is: 139,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,712.90 : 256,284.51 = 100,829.94 : x
  2. Step 2: Convert to fraction form
    185,712.90/256,284.51 = 100,829.94/x
  3. Step 3: Cross multiply
    185,712.90x = 256,284.51 × 100,829.94
  4. Step 4: Simplify right side
    185,712.90x = 25,841,151,766.23
  5. Step 5: Solve for x
    x = 25,841,151,766.23/185,712.90
  6. Step 6: Final answer
    x = 139,145.70

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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.