Home / 132,686.14-183,102.64-78,958.84

Finding the Fourth Proportional to 132,686.14, 183,102.64 and 78,958.84

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Solution

The fourth proportional to 132,686.14, 183,102.64 and 78,958.84 is: 108,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,686.14 : 183,102.64 = 78,958.84 : x
  2. Step 2: Convert to fraction form
    132,686.14/183,102.64 = 78,958.84/x
  3. Step 3: Cross multiply
    132,686.14x = 183,102.64 × 78,958.84
  4. Step 4: Simplify right side
    132,686.14x = 14,457,572,055.34
  5. Step 5: Solve for x
    x = 14,457,572,055.34/132,686.14
  6. Step 6: Final answer
    x = 108,960.68

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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.