Home / 132,920.76-183,428.40-72,491.52

Finding the Fourth Proportional to 132,920.76, 183,428.40 and 72,491.52

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Solution

The fourth proportional to 132,920.76, 183,428.40 and 72,491.52 is: 100,037.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,920.76 : 183,428.40 = 72,491.52 : x
  2. Step 2: Convert to fraction form
    132,920.76/183,428.40 = 72,491.52/x
  3. Step 3: Cross multiply
    132,920.76x = 183,428.40 × 72,491.52
  4. Step 4: Simplify right side
    132,920.76x = 13,297,003,527.17
  5. Step 5: Solve for x
    x = 13,297,003,527.17/132,920.76
  6. Step 6: Final answer
    x = 100,037.07

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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.