Home / 158,221.46-218,343.77-85,622.67

Finding the Fourth Proportional to 158,221.46, 218,343.77 and 85,622.67

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Solution

The fourth proportional to 158,221.46, 218,343.77 and 85,622.67 is: 118,158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,221.46 : 218,343.77 = 85,622.67 : x
  2. Step 2: Convert to fraction form
    158,221.46/218,343.77 = 85,622.67/x
  3. Step 3: Cross multiply
    158,221.46x = 218,343.77 × 85,622.67
  4. Step 4: Simplify right side
    158,221.46x = 18,695,176,458.24
  5. Step 5: Solve for x
    x = 18,695,176,458.24/158,221.46
  6. Step 6: Final answer
    x = 118,158.28

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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.