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Finding the Fourth Proportional to 181,090.26, 249,904.13 and 100,518.75

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Solution

The fourth proportional to 181,090.26, 249,904.13 and 100,518.75 is: 138,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,090.26 : 249,904.13 = 100,518.75 : x
  2. Step 2: Convert to fraction form
    181,090.26/249,904.13 = 100,518.75/x
  3. Step 3: Cross multiply
    181,090.26x = 249,904.13 × 100,518.75
  4. Step 4: Simplify right side
    181,090.26x = 25,120,050,767.44
  5. Step 5: Solve for x
    x = 25,120,050,767.44/181,090.26
  6. Step 6: Final answer
    x = 138,715.64

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1.5x scale

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.