Home / 213,795.71-294,947.70-123,129.98

Finding the Fourth Proportional to 213,795.71, 294,947.70 and 123,129.98

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Solution

The fourth proportional to 213,795.71, 294,947.70 and 123,129.98 is: 169,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,795.71 : 294,947.70 = 123,129.98 : x
  2. Step 2: Convert to fraction form
    213,795.71/294,947.70 = 123,129.98/x
  3. Step 3: Cross multiply
    213,795.71x = 294,947.70 × 123,129.98
  4. Step 4: Simplify right side
    213,795.71x = 36,316,904,402.05
  5. Step 5: Solve for x
    x = 36,316,904,402.05/213,795.71
  6. Step 6: Final answer
    x = 169,867.32

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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.