Home / 131,372.16-197,133.27-51,416.66

Finding the Fourth Proportional to 131,372.16, 197,133.27 and 51,416.66

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Solution

The fourth proportional to 131,372.16, 197,133.27 and 51,416.66 is: 77,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,372.16 : 197,133.27 = 51,416.66 : x
  2. Step 2: Convert to fraction form
    131,372.16/197,133.27 = 51,416.66/x
  3. Step 3: Cross multiply
    131,372.16x = 197,133.27 × 51,416.66
  4. Step 4: Simplify right side
    131,372.16x = 10,135,933,332.61
  5. Step 5: Solve for x
    x = 10,135,933,332.61/131,372.16
  6. Step 6: Final answer
    x = 77,154.35

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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.