Home / 132,985.77-183,520.29-85,239.08

Finding the Fourth Proportional to 132,985.77, 183,520.29 and 85,239.08

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Solution

The fourth proportional to 132,985.77, 183,520.29 and 85,239.08 is: 117,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,985.77 : 183,520.29 = 85,239.08 : x
  2. Step 2: Convert to fraction form
    132,985.77/183,520.29 = 85,239.08/x
  3. Step 3: Cross multiply
    132,985.77x = 183,520.29 × 85,239.08
  4. Step 4: Simplify right side
    132,985.77x = 15,643,100,680.93
  5. Step 5: Solve for x
    x = 15,643,100,680.93/132,985.77
  6. Step 6: Final answer
    x = 117,629.88

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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.