Home / 103,683.12-143,126.04-70,168.56

Finding the Fourth Proportional to 103,683.12, 143,126.04 and 70,168.56

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Solution

The fourth proportional to 103,683.12, 143,126.04 and 70,168.56 is: 96,861.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,683.12 : 143,126.04 = 70,168.56 : x
  2. Step 2: Convert to fraction form
    103,683.12/143,126.04 = 70,168.56/x
  3. Step 3: Cross multiply
    103,683.12x = 143,126.04 × 70,168.56
  4. Step 4: Simplify right side
    103,683.12x = 10,042,948,125.30
  5. Step 5: Solve for x
    x = 10,042,948,125.30/103,683.12
  6. Step 6: Final answer
    x = 96,861.94

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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.