Home / 115,553.40-173,330.10-77,499.60

Finding the Fourth Proportional to 115,553.40, 173,330.10 and 77,499.60

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Solution

The fourth proportional to 115,553.40, 173,330.10 and 77,499.60 is: 116,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,553.40 : 173,330.10 = 77,499.60 : x
  2. Step 2: Convert to fraction form
    115,553.40/173,330.10 = 77,499.60/x
  3. Step 3: Cross multiply
    115,553.40x = 173,330.10 × 77,499.60
  4. Step 4: Simplify right side
    115,553.40x = 13,433,013,417.96
  5. Step 5: Solve for x
    x = 13,433,013,417.96/115,553.40
  6. Step 6: Final answer
    x = 116,249.40

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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.