Home / 132,718.32-183,213.97-84,999.20

Finding the Fourth Proportional to 132,718.32, 183,213.97 and 84,999.20

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Solution

The fourth proportional to 132,718.32, 183,213.97 and 84,999.20 is: 117,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,718.32 : 183,213.97 = 84,999.20 : x
  2. Step 2: Convert to fraction form
    132,718.32/183,213.97 = 84,999.20/x
  3. Step 3: Cross multiply
    132,718.32x = 183,213.97 × 84,999.20
  4. Step 4: Simplify right side
    132,718.32x = 15,573,039,750.26
  5. Step 5: Solve for x
    x = 15,573,039,750.26/132,718.32
  6. Step 6: Final answer
    x = 117,339.04

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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.