Home / 147,647.62-203,689.81-90,289.45

Finding the Fourth Proportional to 147,647.62, 203,689.81 and 90,289.45

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Solution

The fourth proportional to 147,647.62, 203,689.81 and 90,289.45 is: 124,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,647.62 : 203,689.81 = 90,289.45 : x
  2. Step 2: Convert to fraction form
    147,647.62/203,689.81 = 90,289.45/x
  3. Step 3: Cross multiply
    147,647.62x = 203,689.81 × 90,289.45
  4. Step 4: Simplify right side
    147,647.62x = 18,391,040,915.50
  5. Step 5: Solve for x
    x = 18,391,040,915.50/147,647.62
  6. Step 6: Final answer
    x = 124,560.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.