Home / 117,321.32-161,860.98-77,056.92

Finding the Fourth Proportional to 117,321.32, 161,860.98 and 77,056.92

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Solution

The fourth proportional to 117,321.32, 161,860.98 and 77,056.92 is: 106,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,321.32 : 161,860.98 = 77,056.92 : x
  2. Step 2: Convert to fraction form
    117,321.32/161,860.98 = 77,056.92/x
  3. Step 3: Cross multiply
    117,321.32x = 161,860.98 × 77,056.92
  4. Step 4: Simplify right side
    117,321.32x = 12,472,508,586.98
  5. Step 5: Solve for x
    x = 12,472,508,586.98/117,321.32
  6. Step 6: Final answer
    x = 106,310.67

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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.