Home / 152,836.60-229,427.70-90,542.20

Finding the Fourth Proportional to 152,836.60, 229,427.70 and 90,542.20

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Solution

The fourth proportional to 152,836.60, 229,427.70 and 90,542.20 is: 135,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,836.60 : 229,427.70 = 90,542.20 : x
  2. Step 2: Convert to fraction form
    152,836.60/229,427.70 = 90,542.20/x
  3. Step 3: Cross multiply
    152,836.60x = 229,427.70 × 90,542.20
  4. Step 4: Simplify right side
    152,836.60x = 20,772,888,698.94
  5. Step 5: Solve for x
    x = 20,772,888,698.94/152,836.60
  6. Step 6: Final answer
    x = 135,915.67

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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.