Home / 185,317.78-255,731.67-100,433.02

Finding the Fourth Proportional to 185,317.78, 255,731.67 and 100,433.02

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Solution

The fourth proportional to 185,317.78, 255,731.67 and 100,433.02 is: 138,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,317.78 : 255,731.67 = 100,433.02 : x
  2. Step 2: Convert to fraction form
    185,317.78/255,731.67 = 100,433.02/x
  3. Step 3: Cross multiply
    185,317.78x = 255,731.67 × 100,433.02
  4. Step 4: Simplify right side
    185,317.78x = 25,683,903,927.74
  5. Step 5: Solve for x
    x = 25,683,903,927.74/185,317.78
  6. Step 6: Final answer
    x = 138,593.85

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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.