Home / 123,193.13-169,945.38-79,570.67

Finding the Fourth Proportional to 123,193.13, 169,945.38 and 79,570.67

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Solution

The fourth proportional to 123,193.13, 169,945.38 and 79,570.67 is: 109,768.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,193.13 : 169,945.38 = 79,570.67 : x
  2. Step 2: Convert to fraction form
    123,193.13/169,945.38 = 79,570.67/x
  3. Step 3: Cross multiply
    123,193.13x = 169,945.38 × 79,570.67
  4. Step 4: Simplify right side
    123,193.13x = 13,522,666,900.28
  5. Step 5: Solve for x
    x = 13,522,666,900.28/123,193.13
  6. Step 6: Final answer
    x = 109,768.03

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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.