Home / 98,840.12-136,399.61-53,518.66

Finding the Fourth Proportional to 98,840.12, 136,399.61 and 53,518.66

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Solution

The fourth proportional to 98,840.12, 136,399.61 and 53,518.66 is: 73,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,840.12 : 136,399.61 = 53,518.66 : x
  2. Step 2: Convert to fraction form
    98,840.12/136,399.61 = 53,518.66/x
  3. Step 3: Cross multiply
    98,840.12x = 136,399.61 × 53,518.66
  4. Step 4: Simplify right side
    98,840.12x = 7,299,924,144.52
  5. Step 5: Solve for x
    x = 7,299,924,144.52/98,840.12
  6. Step 6: Final answer
    x = 73,855.88

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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.