Home / 185,631.80-256,172.64-100,748.96

Finding the Fourth Proportional to 185,631.80, 256,172.64 and 100,748.96

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Solution

The fourth proportional to 185,631.80, 256,172.64 and 100,748.96 is: 139,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,631.80 : 256,172.64 = 100,748.96 : x
  2. Step 2: Convert to fraction form
    185,631.80/256,172.64 = 100,748.96/x
  3. Step 3: Cross multiply
    185,631.80x = 256,172.64 × 100,748.96
  4. Step 4: Simplify right side
    185,631.80x = 25,809,127,060.45
  5. Step 5: Solve for x
    x = 25,809,127,060.45/185,631.80
  6. Step 6: Final answer
    x = 139,033.98

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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.