Home / 117,214.40-175,562.40-90,711.20

Finding the Fourth Proportional to 117,214.40, 175,562.40 and 90,711.20

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Solution

The fourth proportional to 117,214.40, 175,562.40 and 90,711.20 is: 135,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,214.40 : 175,562.40 = 90,711.20 : x
  2. Step 2: Convert to fraction form
    117,214.40/175,562.40 = 90,711.20/x
  3. Step 3: Cross multiply
    117,214.40x = 175,562.40 × 90,711.20
  4. Step 4: Simplify right side
    117,214.40x = 15,925,475,978.88
  5. Step 5: Solve for x
    x = 15,925,475,978.88/117,214.40
  6. Step 6: Final answer
    x = 135,866.21

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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.