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Finding the Fourth Proportional to 98,664.77, 136,169.84 and 64,701.83

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Solution

The fourth proportional to 98,664.77, 136,169.84 and 64,701.83 is: 89,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,664.77 : 136,169.84 = 64,701.83 : x
  2. Step 2: Convert to fraction form
    98,664.77/136,169.84 = 64,701.83/x
  3. Step 3: Cross multiply
    98,664.77x = 136,169.84 × 64,701.83
  4. Step 4: Simplify right side
    98,664.77x = 8,810,437,319.71
  5. Step 5: Solve for x
    x = 8,810,437,319.71/98,664.77
  6. Step 6: Final answer
    x = 89,296.69

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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.