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Finding the Fourth Proportional to 181,055.32, 249,886.22 and 100,508.64

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Solution

The fourth proportional to 181,055.32, 249,886.22 and 100,508.64 is: 138,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,055.32 : 249,886.22 = 100,508.64 : x
  2. Step 2: Convert to fraction form
    181,055.32/249,886.22 = 100,508.64/x
  3. Step 3: Cross multiply
    181,055.32x = 249,886.22 × 100,508.64
  4. Step 4: Simplify right side
    181,055.32x = 25,115,724,126.94
  5. Step 5: Solve for x
    x = 25,115,724,126.94/181,055.32
  6. Step 6: Final answer
    x = 138,718.51

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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.