Home / 99,189.91-136,848.77-56,163.52

Finding the Fourth Proportional to 99,189.91, 136,848.77 and 56,163.52

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Solution

The fourth proportional to 99,189.91, 136,848.77 and 56,163.52 is: 77,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,189.91 : 136,848.77 = 56,163.52 : x
  2. Step 2: Convert to fraction form
    99,189.91/136,848.77 = 56,163.52/x
  3. Step 3: Cross multiply
    99,189.91x = 136,848.77 × 56,163.52
  4. Step 4: Simplify right side
    99,189.91x = 7,685,907,946.63
  5. Step 5: Solve for x
    x = 7,685,907,946.63/99,189.91
  6. Step 6: Final answer
    x = 77,486.80

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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.