Home / 158,219.21-218,341.70-85,622.04

Finding the Fourth Proportional to 158,219.21, 218,341.70 and 85,622.04

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Solution

The fourth proportional to 158,219.21, 218,341.70 and 85,622.04 is: 118,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,219.21 : 218,341.70 = 85,622.04 : x
  2. Step 2: Convert to fraction form
    158,219.21/218,341.70 = 85,622.04/x
  3. Step 3: Cross multiply
    158,219.21x = 218,341.70 × 85,622.04
  4. Step 4: Simplify right side
    158,219.21x = 18,694,861,342.96
  5. Step 5: Solve for x
    x = 18,694,861,342.96/158,219.21
  6. Step 6: Final answer
    x = 118,157.98

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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.