Home / 109,903.42-164,598.76-80,247.70

Finding the Fourth Proportional to 109,903.42, 164,598.76 and 80,247.70

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Solution

The fourth proportional to 109,903.42, 164,598.76 and 80,247.70 is: 120,184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,903.42 : 164,598.76 = 80,247.70 : x
  2. Step 2: Convert to fraction form
    109,903.42/164,598.76 = 80,247.70/x
  3. Step 3: Cross multiply
    109,903.42x = 164,598.76 × 80,247.70
  4. Step 4: Simplify right side
    109,903.42x = 13,208,671,912.85
  5. Step 5: Solve for x
    x = 13,208,671,912.85/109,903.42
  6. Step 6: Final answer
    x = 120,184.36

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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.