Home / 181,008.84-249,780.18-100,431.27

Finding the Fourth Proportional to 181,008.84, 249,780.18 and 100,431.27

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Solution

The fourth proportional to 181,008.84, 249,780.18 and 100,431.27 is: 138,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,008.84 : 249,780.18 = 100,431.27 : x
  2. Step 2: Convert to fraction form
    181,008.84/249,780.18 = 100,431.27/x
  3. Step 3: Cross multiply
    181,008.84x = 249,780.18 × 100,431.27
  4. Step 4: Simplify right side
    181,008.84x = 25,085,740,698.23
  5. Step 5: Solve for x
    x = 25,085,740,698.23/181,008.84
  6. Step 6: Final answer
    x = 138,588.48

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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.