Home / 131,603.69-181,612.55-71,174.39

Finding the Fourth Proportional to 131,603.69, 181,612.55 and 71,174.39

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Solution

The fourth proportional to 131,603.69, 181,612.55 and 71,174.39 is: 98,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,603.69 : 181,612.55 = 71,174.39 : x
  2. Step 2: Convert to fraction form
    131,603.69/181,612.55 = 71,174.39/x
  3. Step 3: Cross multiply
    131,603.69x = 181,612.55 × 71,174.39
  4. Step 4: Simplify right side
    131,603.69x = 12,926,161,198.66
  5. Step 5: Solve for x
    x = 12,926,161,198.66/131,603.69
  6. Step 6: Final answer
    x = 98,220.36

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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.