Home / 134,490.60-201,444.30-87,251.40

Finding the Fourth Proportional to 134,490.60, 201,444.30 and 87,251.40

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Solution

The fourth proportional to 134,490.60, 201,444.30 and 87,251.40 is: 130,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,490.60 : 201,444.30 = 87,251.40 : x
  2. Step 2: Convert to fraction form
    134,490.60/201,444.30 = 87,251.40/x
  3. Step 3: Cross multiply
    134,490.60x = 201,444.30 × 87,251.40
  4. Step 4: Simplify right side
    134,490.60x = 17,576,297,197.02
  5. Step 5: Solve for x
    x = 17,576,297,197.02/134,490.60
  6. Step 6: Final answer
    x = 130,687.92

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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.