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Finding the Fourth Proportional to 181,382.63, 250,312.28 and 100,813.55

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Solution

The fourth proportional to 181,382.63, 250,312.28 and 100,813.55 is: 139,125.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,382.63 : 250,312.28 = 100,813.55 : x
  2. Step 2: Convert to fraction form
    181,382.63/250,312.28 = 100,813.55/x
  3. Step 3: Cross multiply
    181,382.63x = 250,312.28 × 100,813.55
  4. Step 4: Simplify right side
    181,382.63x = 25,234,867,799.76
  5. Step 5: Solve for x
    x = 25,234,867,799.76/181,382.63
  6. Step 6: Final answer
    x = 139,125.06

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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.