Home / 102,521.24-153,831-55,774.04

Finding the Fourth Proportional to 102,521.24, 153,831 and 55,774.04

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Solution

The fourth proportional to 102,521.24, 153,831 and 55,774.04 is: 83,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,521.24 : 153,831 = 55,774.04 : x
  2. Step 2: Convert to fraction form
    102,521.24/153,831 = 55,774.04/x
  3. Step 3: Cross multiply
    102,521.24x = 153,831 × 55,774.04
  4. Step 4: Simplify right side
    102,521.24x = 8,579,776,347.24
  5. Step 5: Solve for x
    x = 8,579,776,347.24/102,521.24
  6. Step 6: Final answer
    x = 83,687.79

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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.