Home / 236,529.12-326,407.92-129,099.84

Finding the Fourth Proportional to 236,529.12, 326,407.92 and 129,099.84

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Solution

The fourth proportional to 236,529.12, 326,407.92 and 129,099.84 is: 178,156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,529.12 : 326,407.92 = 129,099.84 : x
  2. Step 2: Convert to fraction form
    236,529.12/326,407.92 = 129,099.84/x
  3. Step 3: Cross multiply
    236,529.12x = 326,407.92 × 129,099.84
  4. Step 4: Simplify right side
    236,529.12x = 42,139,210,246.73
  5. Step 5: Solve for x
    x = 42,139,210,246.73/236,529.12
  6. Step 6: Final answer
    x = 178,156.54

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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.