Home / 185,658.06-256,208.43-100,775.10

Finding the Fourth Proportional to 185,658.06, 256,208.43 and 100,775.10

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Solution

The fourth proportional to 185,658.06, 256,208.43 and 100,775.10 is: 139,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,658.06 : 256,208.43 = 100,775.10 : x
  2. Step 2: Convert to fraction form
    185,658.06/256,208.43 = 100,775.10/x
  3. Step 3: Cross multiply
    185,658.06x = 256,208.43 × 100,775.10
  4. Step 4: Simplify right side
    185,658.06x = 25,819,430,154.09
  5. Step 5: Solve for x
    x = 25,819,430,154.09/185,658.06
  6. Step 6: Final answer
    x = 139,069.80

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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.