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Finding the Fourth Proportional to 181,172.48, 250,009.67 and 100,605.11

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Solution

The fourth proportional to 181,172.48, 250,009.67 and 100,605.11 is: 138,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,172.48 : 250,009.67 = 100,605.11 : x
  2. Step 2: Convert to fraction form
    181,172.48/250,009.67 = 100,605.11/x
  3. Step 3: Cross multiply
    181,172.48x = 250,009.67 × 100,605.11
  4. Step 4: Simplify right side
    181,172.48x = 25,152,249,848.39
  5. Step 5: Solve for x
    x = 25,152,249,848.39/181,172.48
  6. Step 6: Final answer
    x = 138,830.41

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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.