Home / 132,869.79-183,368.48-76,289.67

Finding the Fourth Proportional to 132,869.79, 183,368.48 and 76,289.67

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Solution

The fourth proportional to 132,869.79, 183,368.48 and 76,289.67 is: 105,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,869.79 : 183,368.48 = 76,289.67 : x
  2. Step 2: Convert to fraction form
    132,869.79/183,368.48 = 76,289.67/x
  3. Step 3: Cross multiply
    132,869.79x = 183,368.48 × 76,289.67
  4. Step 4: Simplify right side
    132,869.79x = 13,989,120,446.15
  5. Step 5: Solve for x
    x = 13,989,120,446.15/132,869.79
  6. Step 6: Final answer
    x = 105,284.43

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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.