Home / 123,341.19-170,242.26-82,509.90

Finding the Fourth Proportional to 123,341.19, 170,242.26 and 82,509.90

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Solution

The fourth proportional to 123,341.19, 170,242.26 and 82,509.90 is: 113,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,341.19 : 170,242.26 = 82,509.90 : x
  2. Step 2: Convert to fraction form
    123,341.19/170,242.26 = 82,509.90/x
  3. Step 3: Cross multiply
    123,341.19x = 170,242.26 × 82,509.90
  4. Step 4: Simplify right side
    123,341.19x = 14,046,670,900.55
  5. Step 5: Solve for x
    x = 14,046,670,900.55/123,341.19
  6. Step 6: Final answer
    x = 113,884.67

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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.