Home / 133,207.76-183,826.83-72,779.39

Finding the Fourth Proportional to 133,207.76, 183,826.83 and 72,779.39

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Solution

The fourth proportional to 133,207.76, 183,826.83 and 72,779.39 is: 100,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,207.76 : 183,826.83 = 72,779.39 : x
  2. Step 2: Convert to fraction form
    133,207.76/183,826.83 = 72,779.39/x
  3. Step 3: Cross multiply
    133,207.76x = 183,826.83 × 72,779.39
  4. Step 4: Simplify right side
    133,207.76x = 13,378,803,633.90
  5. Step 5: Solve for x
    x = 13,378,803,633.90/133,207.76
  6. Step 6: Final answer
    x = 100,435.62

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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.