Home / 103,272.77-142,516.03-57,950.65

Finding the Fourth Proportional to 103,272.77, 142,516.03 and 57,950.65

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Solution

The fourth proportional to 103,272.77, 142,516.03 and 57,950.65 is: 79,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,272.77 : 142,516.03 = 57,950.65 : x
  2. Step 2: Convert to fraction form
    103,272.77/142,516.03 = 57,950.65/x
  3. Step 3: Cross multiply
    103,272.77x = 142,516.03 × 57,950.65
  4. Step 4: Simplify right side
    103,272.77x = 8,258,895,861.34
  5. Step 5: Solve for x
    x = 8,258,895,861.34/103,272.77
  6. Step 6: Final answer
    x = 79,971.67

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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.