Home / 102,087.20-152,823.60-89,799.20

Finding the Fourth Proportional to 102,087.20, 152,823.60 and 89,799.20

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Solution

The fourth proportional to 102,087.20, 152,823.60 and 89,799.20 is: 134,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,087.20 : 152,823.60 = 89,799.20 : x
  2. Step 2: Convert to fraction form
    102,087.20/152,823.60 = 89,799.20/x
  3. Step 3: Cross multiply
    102,087.20x = 152,823.60 × 89,799.20
  4. Step 4: Simplify right side
    102,087.20x = 13,723,437,021.12
  5. Step 5: Solve for x
    x = 13,723,437,021.12/102,087.20
  6. Step 6: Final answer
    x = 134,428.58

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1.5x scale

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.