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Finding the Fourth Proportional to 181,172.40, 250,022.60 and 100,603.32

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Solution

The fourth proportional to 181,172.40, 250,022.60 and 100,603.32 is: 138,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,172.40 : 250,022.60 = 100,603.32 : x
  2. Step 2: Convert to fraction form
    181,172.40/250,022.60 = 100,603.32/x
  3. Step 3: Cross multiply
    181,172.40x = 250,022.60 × 100,603.32
  4. Step 4: Simplify right side
    181,172.40x = 25,153,103,635.03
  5. Step 5: Solve for x
    x = 25,153,103,635.03/181,172.40
  6. Step 6: Final answer
    x = 138,835.18

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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.