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Finding the Fourth Proportional to 180,406.79, 248,955.25 and 99,837.71

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Solution

The fourth proportional to 180,406.79, 248,955.25 and 99,837.71 is: 137,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,406.79 : 248,955.25 = 99,837.71 : x
  2. Step 2: Convert to fraction form
    180,406.79/248,955.25 = 99,837.71/x
  3. Step 3: Cross multiply
    180,406.79x = 248,955.25 × 99,837.71
  4. Step 4: Simplify right side
    180,406.79x = 24,855,121,553.29
  5. Step 5: Solve for x
    x = 24,855,121,553.29/180,406.79
  6. Step 6: Final answer
    x = 137,772.65

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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.