Home / 132,719.61-183,146.74-72,289.96

Finding the Fourth Proportional to 132,719.61, 183,146.74 and 72,289.96

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Solution

The fourth proportional to 132,719.61, 183,146.74 and 72,289.96 is: 99,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,719.61 : 183,146.74 = 72,289.96 : x
  2. Step 2: Convert to fraction form
    132,719.61/183,146.74 = 72,289.96/x
  3. Step 3: Cross multiply
    132,719.61x = 183,146.74 × 72,289.96
  4. Step 4: Simplify right side
    132,719.61x = 13,239,670,508.73
  5. Step 5: Solve for x
    x = 13,239,670,508.73/132,719.61
  6. Step 6: Final answer
    x = 99,756.70

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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.