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Finding the Fourth Proportional to 109,034.56, 150,445.63 and 63,703.78

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Solution

The fourth proportional to 109,034.56, 150,445.63 and 63,703.78 is: 87,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,034.56 : 150,445.63 = 63,703.78 : x
  2. Step 2: Convert to fraction form
    109,034.56/150,445.63 = 63,703.78/x
  3. Step 3: Cross multiply
    109,034.56x = 150,445.63 × 63,703.78
  4. Step 4: Simplify right side
    109,034.56x = 9,583,955,315.48
  5. Step 5: Solve for x
    x = 9,583,955,315.48/109,034.56
  6. Step 6: Final answer
    x = 87,898.33

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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.