Home / 131,603.30-181,612.04-71,174.02

Finding the Fourth Proportional to 131,603.30, 181,612.04 and 71,174.02

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Solution

The fourth proportional to 131,603.30, 181,612.04 and 71,174.02 is: 98,219.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,603.30 : 181,612.04 = 71,174.02 : x
  2. Step 2: Convert to fraction form
    131,603.30/181,612.04 = 71,174.02/x
  3. Step 3: Cross multiply
    131,603.30x = 181,612.04 × 71,174.02
  4. Step 4: Simplify right side
    131,603.30x = 12,926,058,157.30
  5. Step 5: Solve for x
    x = 12,926,058,157.30/131,603.30
  6. Step 6: Final answer
    x = 98,219.86

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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.