Home / 109,828.32-151,576.44-71,628.72

Finding the Fourth Proportional to 109,828.32, 151,576.44 and 71,628.72

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Solution

The fourth proportional to 109,828.32, 151,576.44 and 71,628.72 is: 98,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,828.32 : 151,576.44 = 71,628.72 : x
  2. Step 2: Convert to fraction form
    109,828.32/151,576.44 = 71,628.72/x
  3. Step 3: Cross multiply
    109,828.32x = 151,576.44 × 71,628.72
  4. Step 4: Simplify right side
    109,828.32x = 10,857,226,379.36
  5. Step 5: Solve for x
    x = 10,857,226,379.36/109,828.32
  6. Step 6: Final answer
    x = 98,856.35

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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.