Home / 132,708.60-183,134.70-76,116.36

Finding the Fourth Proportional to 132,708.60, 183,134.70 and 76,116.36

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Solution

The fourth proportional to 132,708.60, 183,134.70 and 76,116.36 is: 105,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,708.60 : 183,134.70 = 76,116.36 : x
  2. Step 2: Convert to fraction form
    132,708.60/183,134.70 = 76,116.36/x
  3. Step 3: Cross multiply
    132,708.60x = 183,134.70 × 76,116.36
  4. Step 4: Simplify right side
    132,708.60x = 13,939,546,753.69
  5. Step 5: Solve for x
    x = 13,939,546,753.69/132,708.60
  6. Step 6: Final answer
    x = 105,038.76

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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.