Home / 159,017.95-219,442.22-87,396.43

Finding the Fourth Proportional to 159,017.95, 219,442.22 and 87,396.43

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Solution

The fourth proportional to 159,017.95, 219,442.22 and 87,396.43 is: 120,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,017.95 : 219,442.22 = 87,396.43 : x
  2. Step 2: Convert to fraction form
    159,017.95/219,442.22 = 87,396.43/x
  3. Step 3: Cross multiply
    159,017.95x = 219,442.22 × 87,396.43
  4. Step 4: Simplify right side
    159,017.95x = 19,178,465,633.69
  5. Step 5: Solve for x
    x = 19,178,465,633.69/159,017.95
  6. Step 6: Final answer
    x = 120,605.67

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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.