Home / 122,118.24-168,439.03-85,896.51

Finding the Fourth Proportional to 122,118.24, 168,439.03 and 85,896.51

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Solution

The fourth proportional to 122,118.24, 168,439.03 and 85,896.51 is: 118,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,118.24 : 168,439.03 = 85,896.51 : x
  2. Step 2: Convert to fraction form
    122,118.24/168,439.03 = 85,896.51/x
  3. Step 3: Cross multiply
    122,118.24x = 168,439.03 × 85,896.51
  4. Step 4: Simplify right side
    122,118.24x = 14,468,324,824.79
  5. Step 5: Solve for x
    x = 14,468,324,824.79/122,118.24
  6. Step 6: Final answer
    x = 118,478.00

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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.