Home / 122,794.16-169,456.20-72,496.40

Finding the Fourth Proportional to 122,794.16, 169,456.20 and 72,496.40

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Solution

The fourth proportional to 122,794.16, 169,456.20 and 72,496.40 is: 100,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,794.16 : 169,456.20 = 72,496.40 : x
  2. Step 2: Convert to fraction form
    122,794.16/169,456.20 = 72,496.40/x
  3. Step 3: Cross multiply
    122,794.16x = 169,456.20 × 72,496.40
  4. Step 4: Simplify right side
    122,794.16x = 12,284,964,457.68
  5. Step 5: Solve for x
    x = 12,284,964,457.68/122,794.16
  6. Step 6: Final answer
    x = 100,045.19

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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.