Home / 131,670.13-181,703.49-71,239.45

Finding the Fourth Proportional to 131,670.13, 181,703.49 and 71,239.45

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Solution

The fourth proportional to 131,670.13, 181,703.49 and 71,239.45 is: 98,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,670.13 : 181,703.49 = 71,239.45 : x
  2. Step 2: Convert to fraction form
    131,670.13/181,703.49 = 71,239.45/x
  3. Step 3: Cross multiply
    131,670.13x = 181,703.49 × 71,239.45
  4. Step 4: Simplify right side
    131,670.13x = 12,944,456,690.68
  5. Step 5: Solve for x
    x = 12,944,456,690.68/131,670.13
  6. Step 6: Final answer
    x = 98,309.74

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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.