Home / 120,270.38-180,401.84-57,135.93

Finding the Fourth Proportional to 120,270.38, 180,401.84 and 57,135.93

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Solution

The fourth proportional to 120,270.38, 180,401.84 and 57,135.93 is: 85,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,270.38 : 180,401.84 = 57,135.93 : x
  2. Step 2: Convert to fraction form
    120,270.38/180,401.84 = 57,135.93/x
  3. Step 3: Cross multiply
    120,270.38x = 180,401.84 × 57,135.93
  4. Step 4: Simplify right side
    120,270.38x = 10,307,426,616.43
  5. Step 5: Solve for x
    x = 10,307,426,616.43/120,270.38
  6. Step 6: Final answer
    x = 85,702.12

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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.