Home / 134,490.10-201,443.55-87,250.90

Finding the Fourth Proportional to 134,490.10, 201,443.55 and 87,250.90

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Solution

The fourth proportional to 134,490.10, 201,443.55 and 87,250.90 is: 130,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,490.10 : 201,443.55 = 87,250.90 : x
  2. Step 2: Convert to fraction form
    134,490.10/201,443.55 = 87,250.90/x
  3. Step 3: Cross multiply
    134,490.10x = 201,443.55 × 87,250.90
  4. Step 4: Simplify right side
    134,490.10x = 17,576,131,036.70
  5. Step 5: Solve for x
    x = 17,576,131,036.70/134,490.10
  6. Step 6: Final answer
    x = 130,687.17

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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.