Home / 122,707.32-169,331.78-68,995.42

Finding the Fourth Proportional to 122,707.32, 169,331.78 and 68,995.42

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Solution

The fourth proportional to 122,707.32, 169,331.78 and 68,995.42 is: 95,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,707.32 : 169,331.78 = 68,995.42 : x
  2. Step 2: Convert to fraction form
    122,707.32/169,331.78 = 68,995.42/x
  3. Step 3: Cross multiply
    122,707.32x = 169,331.78 × 68,995.42
  4. Step 4: Simplify right side
    122,707.32x = 11,683,117,280.45
  5. Step 5: Solve for x
    x = 11,683,117,280.45/122,707.32
  6. Step 6: Final answer
    x = 95,211.25

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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.