Home / 131,980.29-182,085.06-86,682.81

Finding the Fourth Proportional to 131,980.29, 182,085.06 and 86,682.81

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Solution

The fourth proportional to 131,980.29, 182,085.06 and 86,682.81 is: 119,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,980.29 : 182,085.06 = 86,682.81 : x
  2. Step 2: Convert to fraction form
    131,980.29/182,085.06 = 86,682.81/x
  3. Step 3: Cross multiply
    131,980.29x = 182,085.06 × 86,682.81
  4. Step 4: Simplify right side
    131,980.29x = 15,783,644,643.47
  5. Step 5: Solve for x
    x = 15,783,644,643.47/131,980.29
  6. Step 6: Final answer
    x = 119,590.93

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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.