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Finding the Fourth Proportional to 109,230, 150,727.80 and 60,828.27

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Solution

The fourth proportional to 109,230, 150,727.80 and 60,828.27 is: 83,937.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,230 : 150,727.80 = 60,828.27 : x
  2. Step 2: Convert to fraction form
    109,230/150,727.80 = 60,828.27/x
  3. Step 3: Cross multiply
    109,230x = 150,727.80 × 60,828.27
  4. Step 4: Simplify right side
    109,230x = 9,168,511,314.91
  5. Step 5: Solve for x
    x = 9,168,511,314.91/109,230
  6. Step 6: Final answer
    x = 83,937.67

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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.