Home / 106,349.08-159,559.90-66,859.96

Finding the Fourth Proportional to 106,349.08, 159,559.90 and 66,859.96

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Solution

The fourth proportional to 106,349.08, 159,559.90 and 66,859.96 is: 100,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,349.08 : 159,559.90 = 66,859.96 : x
  2. Step 2: Convert to fraction form
    106,349.08/159,559.90 = 66,859.96/x
  3. Step 3: Cross multiply
    106,349.08x = 159,559.90 × 66,859.96
  4. Step 4: Simplify right side
    106,349.08x = 10,668,168,531.60
  5. Step 5: Solve for x
    x = 10,668,168,531.60/106,349.08
  6. Step 6: Final answer
    x = 100,312.75

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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.