Home / 213,623.10-320,434.65-88,947.90

Finding the Fourth Proportional to 213,623.10, 320,434.65 and 88,947.90

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Solution

The fourth proportional to 213,623.10, 320,434.65 and 88,947.90 is: 133,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,623.10 : 320,434.65 = 88,947.90 : x
  2. Step 2: Convert to fraction form
    213,623.10/320,434.65 = 88,947.90/x
  3. Step 3: Cross multiply
    213,623.10x = 320,434.65 × 88,947.90
  4. Step 4: Simplify right side
    213,623.10x = 28,501,989,204.74
  5. Step 5: Solve for x
    x = 28,501,989,204.74/213,623.10
  6. Step 6: Final answer
    x = 133,421.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.