Home / 170,834.74-256,070.06-128,584.16

Finding the Fourth Proportional to 170,834.74, 256,070.06 and 128,584.16

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Solution

The fourth proportional to 170,834.74, 256,070.06 and 128,584.16 is: 192,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,834.74 : 256,070.06 = 128,584.16 : x
  2. Step 2: Convert to fraction form
    170,834.74/256,070.06 = 128,584.16/x
  3. Step 3: Cross multiply
    170,834.74x = 256,070.06 × 128,584.16
  4. Step 4: Simplify right side
    170,834.74x = 32,926,553,085.43
  5. Step 5: Solve for x
    x = 32,926,553,085.43/170,834.74
  6. Step 6: Final answer
    x = 192,739.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.