Home / 122,915.32-169,610.16-69,199.36

Finding the Fourth Proportional to 122,915.32, 169,610.16 and 69,199.36

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Solution

The fourth proportional to 122,915.32, 169,610.16 and 69,199.36 is: 95,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,915.32 : 169,610.16 = 69,199.36 : x
  2. Step 2: Convert to fraction form
    122,915.32/169,610.16 = 69,199.36/x
  3. Step 3: Cross multiply
    122,915.32x = 169,610.16 × 69,199.36
  4. Step 4: Simplify right side
    122,915.32x = 11,736,914,521.50
  5. Step 5: Solve for x
    x = 11,736,914,521.50/122,915.32
  6. Step 6: Final answer
    x = 95,487.81

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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.