Home / 99,041.76-136,682.64-63,203.04

Finding the Fourth Proportional to 99,041.76, 136,682.64 and 63,203.04

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Solution

The fourth proportional to 99,041.76, 136,682.64 and 63,203.04 is: 87,223.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,041.76 : 136,682.64 = 63,203.04 : x
  2. Step 2: Convert to fraction form
    99,041.76/136,682.64 = 63,203.04/x
  3. Step 3: Cross multiply
    99,041.76x = 136,682.64 × 63,203.04
  4. Step 4: Simplify right side
    99,041.76x = 8,638,758,363.23
  5. Step 5: Solve for x
    x = 8,638,758,363.23/99,041.76
  6. Step 6: Final answer
    x = 87,223.39

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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.