Home / 185,699.12-256,266.38-100,816.38

Finding the Fourth Proportional to 185,699.12, 256,266.38 and 100,816.38

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Solution

The fourth proportional to 185,699.12, 256,266.38 and 100,816.38 is: 139,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,699.12 : 256,266.38 = 100,816.38 : x
  2. Step 2: Convert to fraction form
    185,699.12/256,266.38 = 100,816.38/x
  3. Step 3: Cross multiply
    185,699.12x = 256,266.38 × 100,816.38
  4. Step 4: Simplify right side
    185,699.12x = 25,835,848,999.35
  5. Step 5: Solve for x
    x = 25,835,848,999.35/185,699.12
  6. Step 6: Final answer
    x = 139,127.48

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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.