Home / 122,865.96-169,561.98-75,111.60

Finding the Fourth Proportional to 122,865.96, 169,561.98 and 75,111.60

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Solution

The fourth proportional to 122,865.96, 169,561.98 and 75,111.60 is: 103,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,865.96 : 169,561.98 = 75,111.60 : x
  2. Step 2: Convert to fraction form
    122,865.96/169,561.98 = 75,111.60/x
  3. Step 3: Cross multiply
    122,865.96x = 169,561.98 × 75,111.60
  4. Step 4: Simplify right side
    122,865.96x = 12,736,071,616.97
  5. Step 5: Solve for x
    x = 12,736,071,616.97/122,865.96
  6. Step 6: Final answer
    x = 103,658.26

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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.