Home / 99,083.04-136,744.20-56,633.52

Finding the Fourth Proportional to 99,083.04, 136,744.20 and 56,633.52

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Solution

The fourth proportional to 99,083.04, 136,744.20 and 56,633.52 is: 78,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,083.04 : 136,744.20 = 56,633.52 : x
  2. Step 2: Convert to fraction form
    99,083.04/136,744.20 = 56,633.52/x
  3. Step 3: Cross multiply
    99,083.04x = 136,744.20 × 56,633.52
  4. Step 4: Simplify right side
    99,083.04x = 7,744,305,385.58
  5. Step 5: Solve for x
    x = 7,744,305,385.58/99,083.04
  6. Step 6: Final answer
    x = 78,159.75

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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.