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Finding the Fourth Proportional to 181,158.58, 249,991.26 and 100,581.29

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Solution

The fourth proportional to 181,158.58, 249,991.26 and 100,581.29 is: 138,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,158.58 : 249,991.26 = 100,581.29 : x
  2. Step 2: Convert to fraction form
    181,158.58/249,991.26 = 100,581.29/x
  3. Step 3: Cross multiply
    181,158.58x = 249,991.26 × 100,581.29
  4. Step 4: Simplify right side
    181,158.58x = 25,144,444,701.83
  5. Step 5: Solve for x
    x = 25,144,444,701.83/181,158.58
  6. Step 6: Final answer
    x = 138,797.98

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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.