Home / 109,320.23-163,980.38-84,396.67

Finding the Fourth Proportional to 109,320.23, 163,980.38 and 84,396.67

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Solution

The fourth proportional to 109,320.23, 163,980.38 and 84,396.67 is: 126,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,320.23 : 163,980.38 = 84,396.67 : x
  2. Step 2: Convert to fraction form
    109,320.23/163,980.38 = 84,396.67/x
  3. Step 3: Cross multiply
    109,320.23x = 163,980.38 × 84,396.67
  4. Step 4: Simplify right side
    109,320.23x = 13,839,397,818.38
  5. Step 5: Solve for x
    x = 13,839,397,818.38/109,320.23
  6. Step 6: Final answer
    x = 126,595.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.