Home / 112,475.10-155,219.67-67,172.70

Finding the Fourth Proportional to 112,475.10, 155,219.67 and 67,172.70

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Solution

The fourth proportional to 112,475.10, 155,219.67 and 67,172.70 is: 92,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,475.10 : 155,219.67 = 67,172.70 : x
  2. Step 2: Convert to fraction form
    112,475.10/155,219.67 = 67,172.70/x
  3. Step 3: Cross multiply
    112,475.10x = 155,219.67 × 67,172.70
  4. Step 4: Simplify right side
    112,475.10x = 10,426,524,327.01
  5. Step 5: Solve for x
    x = 10,426,524,327.01/112,475.10
  6. Step 6: Final answer
    x = 92,700.73

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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.