Home / 109,019.77-163,529.66-34,145.78

Finding the Fourth Proportional to 109,019.77, 163,529.66 and 34,145.78

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Solution

The fourth proportional to 109,019.77, 163,529.66 and 34,145.78 is: 51,218.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,019.77 : 163,529.66 = 34,145.78 : x
  2. Step 2: Convert to fraction form
    109,019.77/163,529.66 = 34,145.78/x
  3. Step 3: Cross multiply
    109,019.77x = 163,529.66 × 34,145.78
  4. Step 4: Simplify right side
    109,019.77x = 5,583,847,981.41
  5. Step 5: Solve for x
    x = 5,583,847,981.41/109,019.77
  6. Step 6: Final answer
    x = 51,218.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.