Home / 132,678.41-183,099.69-72,251.60

Finding the Fourth Proportional to 132,678.41, 183,099.69 and 72,251.60

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Solution

The fourth proportional to 132,678.41, 183,099.69 and 72,251.60 is: 99,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,678.41 : 183,099.69 = 72,251.60 : x
  2. Step 2: Convert to fraction form
    132,678.41/183,099.69 = 72,251.60/x
  3. Step 3: Cross multiply
    132,678.41x = 183,099.69 × 72,251.60
  4. Step 4: Simplify right side
    132,678.41x = 13,229,244,646.51
  5. Step 5: Solve for x
    x = 13,229,244,646.51/132,678.41
  6. Step 6: Final answer
    x = 99,709.10

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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.