Home / 131,764.74-181,836.77-71,336.66

Finding the Fourth Proportional to 131,764.74, 181,836.77 and 71,336.66

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Solution

The fourth proportional to 131,764.74, 181,836.77 and 71,336.66 is: 98,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,764.74 : 181,836.77 = 71,336.66 : x
  2. Step 2: Convert to fraction form
    131,764.74/181,836.77 = 71,336.66/x
  3. Step 3: Cross multiply
    131,764.74x = 181,836.77 × 71,336.66
  4. Step 4: Simplify right side
    131,764.74x = 12,971,626,571.12
  5. Step 5: Solve for x
    x = 12,971,626,571.12/131,764.74
  6. Step 6: Final answer
    x = 98,445.35

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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.