Home / 189,262.66-261,182.67-103,221.76

Finding the Fourth Proportional to 189,262.66, 261,182.67 and 103,221.76

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Solution

The fourth proportional to 189,262.66, 261,182.67 and 103,221.76 is: 142,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,262.66 : 261,182.67 = 103,221.76 : x
  2. Step 2: Convert to fraction form
    189,262.66/261,182.67 = 103,221.76/x
  3. Step 3: Cross multiply
    189,262.66x = 261,182.67 × 103,221.76
  4. Step 4: Simplify right side
    189,262.66x = 26,959,734,878.90
  5. Step 5: Solve for x
    x = 26,959,734,878.90/189,262.66
  6. Step 6: Final answer
    x = 142,446.14

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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.