Home / 103,192.58-154,789.08-28,313.76

Finding the Fourth Proportional to 103,192.58, 154,789.08 and 28,313.76

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Solution

The fourth proportional to 103,192.58, 154,789.08 and 28,313.76 is: 42,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,192.58 : 154,789.08 = 28,313.76 : x
  2. Step 2: Convert to fraction form
    103,192.58/154,789.08 = 28,313.76/x
  3. Step 3: Cross multiply
    103,192.58x = 154,789.08 × 28,313.76
  4. Step 4: Simplify right side
    103,192.58x = 4,382,660,861.74
  5. Step 5: Solve for x
    x = 4,382,660,861.74/103,192.58
  6. Step 6: Final answer
    x = 42,470.70

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1.5x scale

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.