Home / 131,668.19-181,701.79-71,238.63

Finding the Fourth Proportional to 131,668.19, 181,701.79 and 71,238.63

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Solution

The fourth proportional to 131,668.19, 181,701.79 and 71,238.63 is: 98,309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,668.19 : 181,701.79 = 71,238.63 : x
  2. Step 2: Convert to fraction form
    131,668.19/181,701.79 = 71,238.63/x
  3. Step 3: Cross multiply
    131,668.19x = 181,701.79 × 71,238.63
  4. Step 4: Simplify right side
    131,668.19x = 12,944,186,588.15
  5. Step 5: Solve for x
    x = 12,944,186,588.15/131,668.19
  6. Step 6: Final answer
    x = 98,309.14

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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.