Home / 131,395.16-181,325.20-70,965.80

Finding the Fourth Proportional to 131,395.16, 181,325.20 and 70,965.80

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Solution

The fourth proportional to 131,395.16, 181,325.20 and 70,965.80 is: 97,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,395.16 : 181,325.20 = 70,965.80 : x
  2. Step 2: Convert to fraction form
    131,395.16/181,325.20 = 70,965.80/x
  3. Step 3: Cross multiply
    131,395.16x = 181,325.20 × 70,965.80
  4. Step 4: Simplify right side
    131,395.16x = 12,867,887,878.16
  5. Step 5: Solve for x
    x = 12,867,887,878.16/131,395.16
  6. Step 6: Final answer
    x = 97,932.74

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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.