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Finding the Fourth Proportional to 181,058.98, 249,849.74 and 100,486.55

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Solution

The fourth proportional to 181,058.98, 249,849.74 and 100,486.55 is: 138,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,058.98 : 249,849.74 = 100,486.55 : x
  2. Step 2: Convert to fraction form
    181,058.98/249,849.74 = 100,486.55/x
  3. Step 3: Cross multiply
    181,058.98x = 249,849.74 × 100,486.55
  4. Step 4: Simplify right side
    181,058.98x = 25,106,537,888.56
  5. Step 5: Solve for x
    x = 25,106,537,888.56/181,058.98
  6. Step 6: Final answer
    x = 138,664.97

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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.