Home / 185,631.60-256,171.74-100,748.66

Finding the Fourth Proportional to 185,631.60, 256,171.74 and 100,748.66

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Solution

The fourth proportional to 185,631.60, 256,171.74 and 100,748.66 is: 139,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,631.60 : 256,171.74 = 100,748.66 : x
  2. Step 2: Convert to fraction form
    185,631.60/256,171.74 = 100,748.66/x
  3. Step 3: Cross multiply
    185,631.60x = 256,171.74 × 100,748.66
  4. Step 4: Simplify right side
    185,631.60x = 25,808,959,031.13
  5. Step 5: Solve for x
    x = 25,808,959,031.13/185,631.60
  6. Step 6: Final answer
    x = 139,033.22

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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.