Home / 129,081.30-178,033.62-93,389.46

Finding the Fourth Proportional to 129,081.30, 178,033.62 and 93,389.46

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Solution

The fourth proportional to 129,081.30, 178,033.62 and 93,389.46 is: 128,806.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,081.30 : 178,033.62 = 93,389.46 : x
  2. Step 2: Convert to fraction form
    129,081.30/178,033.62 = 93,389.46/x
  3. Step 3: Cross multiply
    129,081.30x = 178,033.62 × 93,389.46
  4. Step 4: Simplify right side
    129,081.30x = 16,626,463,633.65
  5. Step 5: Solve for x
    x = 16,626,463,633.65/129,081.30
  6. Step 6: Final answer
    x = 128,806.14

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1.5x scale

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.