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Finding the Fourth Proportional to 181,351.40, 250,259.90 and 100,775.03

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Solution

The fourth proportional to 181,351.40, 250,259.90 and 100,775.03 is: 139,066.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,351.40 : 250,259.90 = 100,775.03 : x
  2. Step 2: Convert to fraction form
    181,351.40/250,259.90 = 100,775.03/x
  3. Step 3: Cross multiply
    181,351.40x = 250,259.90 × 100,775.03
  4. Step 4: Simplify right side
    181,351.40x = 25,219,947,175.12
  5. Step 5: Solve for x
    x = 25,219,947,175.12/181,351.40
  6. Step 6: Final answer
    x = 139,066.74

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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.