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Finding the Fourth Proportional to 181,066.82, 249,868.74 and 100,495.31

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Solution

The fourth proportional to 181,066.82, 249,868.74 and 100,495.31 is: 138,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,066.82 : 249,868.74 = 100,495.31 : x
  2. Step 2: Convert to fraction form
    181,066.82/249,868.74 = 100,495.31/x
  3. Step 3: Cross multiply
    181,066.82x = 249,868.74 × 100,495.31
  4. Step 4: Simplify right side
    181,066.82x = 25,110,635,236.27
  5. Step 5: Solve for x
    x = 25,110,635,236.27/181,066.82
  6. Step 6: Final answer
    x = 138,681.60

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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.