Home / 185,800.13-256,402.77-100,917.80

Finding the Fourth Proportional to 185,800.13, 256,402.77 and 100,917.80

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Solution

The fourth proportional to 185,800.13, 256,402.77 and 100,917.80 is: 139,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,800.13 : 256,402.77 = 100,917.80 : x
  2. Step 2: Convert to fraction form
    185,800.13/256,402.77 = 100,917.80/x
  3. Step 3: Cross multiply
    185,800.13x = 256,402.77 × 100,917.80
  4. Step 4: Simplify right side
    185,800.13x = 25,875,603,462.31
  5. Step 5: Solve for x
    x = 25,875,603,462.31/185,800.13
  6. Step 6: Final answer
    x = 139,265.80

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1.5x scale

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.