Home / 132,685.16-183,044.25-78,200.15

Finding the Fourth Proportional to 132,685.16, 183,044.25 and 78,200.15

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Solution

The fourth proportional to 132,685.16, 183,044.25 and 78,200.15 is: 107,880.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,685.16 : 183,044.25 = 78,200.15 : x
  2. Step 2: Convert to fraction form
    132,685.16/183,044.25 = 78,200.15/x
  3. Step 3: Cross multiply
    132,685.16x = 183,044.25 × 78,200.15
  4. Step 4: Simplify right side
    132,685.16x = 14,314,086,891.42
  5. Step 5: Solve for x
    x = 14,314,086,891.42/132,685.16
  6. Step 6: Final answer
    x = 107,880.09

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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.