Home / 131,984.16-182,090.41-86,686.70

Finding the Fourth Proportional to 131,984.16, 182,090.41 and 86,686.70

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Solution

The fourth proportional to 131,984.16, 182,090.41 and 86,686.70 is: 119,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,984.16 : 182,090.41 = 86,686.70 : x
  2. Step 2: Convert to fraction form
    131,984.16/182,090.41 = 86,686.70/x
  3. Step 3: Cross multiply
    131,984.16x = 182,090.41 × 86,686.70
  4. Step 4: Simplify right side
    131,984.16x = 15,784,816,744.55
  5. Step 5: Solve for x
    x = 15,784,816,744.55/131,984.16
  6. Step 6: Final answer
    x = 119,596.30

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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.