Home / 106,530.53-159,820.36-31,649.00

Finding the Fourth Proportional to 106,530.53, 159,820.36 and 31,649.00

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Solution

The fourth proportional to 106,530.53, 159,820.36 and 31,649.00 is: 47,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,530.53 : 159,820.36 = 31,649.00 : x
  2. Step 2: Convert to fraction form
    106,530.53/159,820.36 = 31,649.00/x
  3. Step 3: Cross multiply
    106,530.53x = 159,820.36 × 31,649.00
  4. Step 4: Simplify right side
    106,530.53x = 5,058,153,695.42
  5. Step 5: Solve for x
    x = 5,058,153,695.42/106,530.53
  6. Step 6: Final answer
    x = 47,480.79

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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.