Home / 213,420.06-294,437.16-122,761.62

Finding the Fourth Proportional to 213,420.06, 294,437.16 and 122,761.62

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Solution

The fourth proportional to 213,420.06, 294,437.16 and 122,761.62 is: 169,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,420.06 : 294,437.16 = 122,761.62 : x
  2. Step 2: Convert to fraction form
    213,420.06/294,437.16 = 122,761.62/x
  3. Step 3: Cross multiply
    213,420.06x = 294,437.16 × 122,761.62
  4. Step 4: Simplify right side
    213,420.06x = 36,145,582,749.80
  5. Step 5: Solve for x
    x = 36,145,582,749.80/213,420.06
  6. Step 6: Final answer
    x = 169,363.57

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1.5x scale

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.