Home / 204,025.55-306,038.33-85,830.35

Finding the Fourth Proportional to 204,025.55, 306,038.33 and 85,830.35

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Solution

The fourth proportional to 204,025.55, 306,038.33 and 85,830.35 is: 128,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,025.55 : 306,038.33 = 85,830.35 : x
  2. Step 2: Convert to fraction form
    204,025.55/306,038.33 = 85,830.35/x
  3. Step 3: Cross multiply
    204,025.55x = 306,038.33 × 85,830.35
  4. Step 4: Simplify right side
    204,025.55x = 26,267,376,548.16
  5. Step 5: Solve for x
    x = 26,267,376,548.16/204,025.55
  6. Step 6: Final answer
    x = 128,745.53

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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.