Home / 109,786.58-151,489.46-64,479.16

Finding the Fourth Proportional to 109,786.58, 151,489.46 and 64,479.16

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Solution

The fourth proportional to 109,786.58, 151,489.46 and 64,479.16 is: 88,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,786.58 : 151,489.46 = 64,479.16 : x
  2. Step 2: Convert to fraction form
    109,786.58/151,489.46 = 64,479.16/x
  3. Step 3: Cross multiply
    109,786.58x = 151,489.46 × 64,479.16
  4. Step 4: Simplify right side
    109,786.58x = 9,767,913,129.65
  5. Step 5: Solve for x
    x = 9,767,913,129.65/109,786.58
  6. Step 6: Final answer
    x = 88,971.83

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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.