Home / 131,771.16-181,927.98-86,529.42

Finding the Fourth Proportional to 131,771.16, 181,927.98 and 86,529.42

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Solution

The fourth proportional to 131,771.16, 181,927.98 and 86,529.42 is: 119,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,771.16 : 181,927.98 = 86,529.42 : x
  2. Step 2: Convert to fraction form
    131,771.16/181,927.98 = 86,529.42/x
  3. Step 3: Cross multiply
    131,771.16x = 181,927.98 × 86,529.42
  4. Step 4: Simplify right side
    131,771.16x = 15,742,122,591.17
  5. Step 5: Solve for x
    x = 15,742,122,591.17/131,771.16
  6. Step 6: Final answer
    x = 119,465.61

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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.