Home / 132,957.15-183,481.40-72,529.12

Finding the Fourth Proportional to 132,957.15, 183,481.40 and 72,529.12

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Solution

The fourth proportional to 132,957.15, 183,481.40 and 72,529.12 is: 100,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,957.15 : 183,481.40 = 72,529.12 : x
  2. Step 2: Convert to fraction form
    132,957.15/183,481.40 = 72,529.12/x
  3. Step 3: Cross multiply
    132,957.15x = 183,481.40 × 72,529.12
  4. Step 4: Simplify right side
    132,957.15x = 13,307,744,889.04
  5. Step 5: Solve for x
    x = 13,307,744,889.04/132,957.15
  6. Step 6: Final answer
    x = 100,090.48

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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.