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Finding the Fourth Proportional to 181,009.81, 249,793.50 and 100,437.89

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Solution

The fourth proportional to 181,009.81, 249,793.50 and 100,437.89 is: 138,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,009.81 : 249,793.50 = 100,437.89 : x
  2. Step 2: Convert to fraction form
    181,009.81/249,793.50 = 100,437.89/x
  3. Step 3: Cross multiply
    181,009.81x = 249,793.50 × 100,437.89
  4. Step 4: Simplify right side
    181,009.81x = 25,088,732,075.72
  5. Step 5: Solve for x
    x = 25,088,732,075.72/181,009.81
  6. Step 6: Final answer
    x = 138,604.27

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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.