Home / 117,389.70-161,997.84-63,674.52

Finding the Fourth Proportional to 117,389.70, 161,997.84 and 63,674.52

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Solution

The fourth proportional to 117,389.70, 161,997.84 and 63,674.52 is: 87,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,389.70 : 161,997.84 = 63,674.52 : x
  2. Step 2: Convert to fraction form
    117,389.70/161,997.84 = 63,674.52/x
  3. Step 3: Cross multiply
    117,389.70x = 161,997.84 × 63,674.52
  4. Step 4: Simplify right side
    117,389.70x = 10,315,134,703.04
  5. Step 5: Solve for x
    x = 10,315,134,703.04/117,389.70
  6. Step 6: Final answer
    x = 87,870.87

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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.