Home / 120,817.46-166,660.90-112,264.57

Finding the Fourth Proportional to 120,817.46, 166,660.90 and 112,264.57

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Solution

The fourth proportional to 120,817.46, 166,660.90 and 112,264.57 is: 154,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,817.46 : 166,660.90 = 112,264.57 : x
  2. Step 2: Convert to fraction form
    120,817.46/166,660.90 = 112,264.57/x
  3. Step 3: Cross multiply
    120,817.46x = 166,660.90 × 112,264.57
  4. Step 4: Simplify right side
    120,817.46x = 18,710,114,274.31
  5. Step 5: Solve for x
    x = 18,710,114,274.31/120,817.46
  6. Step 6: Final answer
    x = 154,862.67

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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.