Home / 156,902.43-216,525.63-85,282.26

Finding the Fourth Proportional to 156,902.43, 216,525.63 and 85,282.26

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Solution

The fourth proportional to 156,902.43, 216,525.63 and 85,282.26 is: 117,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,902.43 : 216,525.63 = 85,282.26 : x
  2. Step 2: Convert to fraction form
    156,902.43/216,525.63 = 85,282.26/x
  3. Step 3: Cross multiply
    156,902.43x = 216,525.63 × 85,282.26
  4. Step 4: Simplify right side
    156,902.43x = 18,465,795,074.32
  5. Step 5: Solve for x
    x = 18,465,795,074.32/156,902.43
  6. Step 6: Final answer
    x = 117,689.67

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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.