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Finding the Fourth Proportional to 181,064.68, 249,865.50 and 100,487.52

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Solution

The fourth proportional to 181,064.68, 249,865.50 and 100,487.52 is: 138,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,064.68 : 249,865.50 = 100,487.52 : x
  2. Step 2: Convert to fraction form
    181,064.68/249,865.50 = 100,487.52/x
  3. Step 3: Cross multiply
    181,064.68x = 249,865.50 × 100,487.52
  4. Step 4: Simplify right side
    181,064.68x = 25,108,364,428.56
  5. Step 5: Solve for x
    x = 25,108,364,428.56/181,064.68
  6. Step 6: Final answer
    x = 138,670.69

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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.