Home / 159,084.42-219,536.61-87,465.66

Finding the Fourth Proportional to 159,084.42, 219,536.61 and 87,465.66

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Solution

The fourth proportional to 159,084.42, 219,536.61 and 87,465.66 is: 120,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,084.42 : 219,536.61 = 87,465.66 : x
  2. Step 2: Convert to fraction form
    159,084.42/219,536.61 = 87,465.66/x
  3. Step 3: Cross multiply
    159,084.42x = 219,536.61 × 87,465.66
  4. Step 4: Simplify right side
    159,084.42x = 19,201,914,487.81
  5. Step 5: Solve for x
    x = 19,201,914,487.81/159,084.42
  6. Step 6: Final answer
    x = 120,702.67

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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.