Home / 181,003.34-249,780.78-100,429.13

Finding the Fourth Proportional to 181,003.34, 249,780.78 and 100,429.13

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Solution

The fourth proportional to 181,003.34, 249,780.78 and 100,429.13 is: 138,590.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,003.34 : 249,780.78 = 100,429.13 : x
  2. Step 2: Convert to fraction form
    181,003.34/249,780.78 = 100,429.13/x
  3. Step 3: Cross multiply
    181,003.34x = 249,780.78 × 100,429.13
  4. Step 4: Simplify right side
    181,003.34x = 25,085,266,426.12
  5. Step 5: Solve for x
    x = 25,085,266,426.12/181,003.34
  6. Step 6: Final answer
    x = 138,590.07

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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.