Home / 209,901.61-289,672.05-119,272.96

Finding the Fourth Proportional to 209,901.61, 289,672.05 and 119,272.96

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Solution

The fourth proportional to 209,901.61, 289,672.05 and 119,272.96 is: 164,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,901.61 : 289,672.05 = 119,272.96 : x
  2. Step 2: Convert to fraction form
    209,901.61/289,672.05 = 119,272.96/x
  3. Step 3: Cross multiply
    209,901.61x = 289,672.05 × 119,272.96
  4. Step 4: Simplify right side
    209,901.61x = 34,550,042,832.77
  5. Step 5: Solve for x
    x = 34,550,042,832.77/209,901.61
  6. Step 6: Final answer
    x = 164,601.13

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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.