Home / 134,441.40-201,662.10-87,439.80

Finding the Fourth Proportional to 134,441.40, 201,662.10 and 87,439.80

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Solution

The fourth proportional to 134,441.40, 201,662.10 and 87,439.80 is: 131,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,441.40 : 201,662.10 = 87,439.80 : x
  2. Step 2: Convert to fraction form
    134,441.40/201,662.10 = 87,439.80/x
  3. Step 3: Cross multiply
    134,441.40x = 201,662.10 × 87,439.80
  4. Step 4: Simplify right side
    134,441.40x = 17,633,293,691.58
  5. Step 5: Solve for x
    x = 17,633,293,691.58/134,441.40
  6. Step 6: Final answer
    x = 131,159.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.