Home / 181,153.25-249,999.30-100,580.78

Finding the Fourth Proportional to 181,153.25, 249,999.30 and 100,580.78

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Solution

The fourth proportional to 181,153.25, 249,999.30 and 100,580.78 is: 138,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,153.25 : 249,999.30 = 100,580.78 : x
  2. Step 2: Convert to fraction form
    181,153.25/249,999.30 = 100,580.78/x
  3. Step 3: Cross multiply
    181,153.25x = 249,999.30 × 100,580.78
  4. Step 4: Simplify right side
    181,153.25x = 25,145,124,593.45
  5. Step 5: Solve for x
    x = 25,145,124,593.45/181,153.25
  6. Step 6: Final answer
    x = 138,805.82

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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.