Home / 185,865.76-256,499.76-100,988.56

Finding the Fourth Proportional to 185,865.76, 256,499.76 and 100,988.56

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Solution

The fourth proportional to 185,865.76, 256,499.76 and 100,988.56 is: 139,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,865.76 : 256,499.76 = 100,988.56 : x
  2. Step 2: Convert to fraction form
    185,865.76/256,499.76 = 100,988.56/x
  3. Step 3: Cross multiply
    185,865.76x = 256,499.76 × 100,988.56
  4. Step 4: Simplify right side
    185,865.76x = 25,903,541,402.75
  5. Step 5: Solve for x
    x = 25,903,541,402.75/185,865.76
  6. Step 6: Final answer
    x = 139,366.94

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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.