Home / 103,670.46-143,148.33-67,389.89

Finding the Fourth Proportional to 103,670.46, 143,148.33 and 67,389.89

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Solution

The fourth proportional to 103,670.46, 143,148.33 and 67,389.89 is: 93,052.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.46 : 143,148.33 = 67,389.89 : x
  2. Step 2: Convert to fraction form
    103,670.46/143,148.33 = 67,389.89/x
  3. Step 3: Cross multiply
    103,670.46x = 143,148.33 × 67,389.89
  4. Step 4: Simplify right side
    103,670.46x = 9,646,749,496.64
  5. Step 5: Solve for x
    x = 9,646,749,496.64/103,670.46
  6. Step 6: Final answer
    x = 93,052.06

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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.