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Finding the Fourth Proportional to 181,559.70, 250,548.79 and 100,985.49

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Solution

The fourth proportional to 181,559.70, 250,548.79 and 100,985.49 is: 139,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,559.70 : 250,548.79 = 100,985.49 : x
  2. Step 2: Convert to fraction form
    181,559.70/250,548.79 = 100,985.49/x
  3. Step 3: Cross multiply
    181,559.70x = 250,548.79 × 100,985.49
  4. Step 4: Simplify right side
    181,559.70x = 25,301,791,822.13
  5. Step 5: Solve for x
    x = 25,301,791,822.13/181,559.70
  6. Step 6: Final answer
    x = 139,357.97

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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.