Home / 134,470.40-201,705.60-87,231.20

Finding the Fourth Proportional to 134,470.40, 201,705.60 and 87,231.20

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Solution

The fourth proportional to 134,470.40, 201,705.60 and 87,231.20 is: 130,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,470.40 : 201,705.60 = 87,231.20 : x
  2. Step 2: Convert to fraction form
    134,470.40/201,705.60 = 87,231.20/x
  3. Step 3: Cross multiply
    134,470.40x = 201,705.60 × 87,231.20
  4. Step 4: Simplify right side
    134,470.40x = 17,595,021,534.72
  5. Step 5: Solve for x
    x = 17,595,021,534.72/134,470.40
  6. Step 6: Final answer
    x = 130,846.80

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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.