Home / 123,112.29-169,895.07-66,523.67

Finding the Fourth Proportional to 123,112.29, 169,895.07 and 66,523.67

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Solution

The fourth proportional to 123,112.29, 169,895.07 and 66,523.67 is: 91,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,112.29 : 169,895.07 = 66,523.67 : x
  2. Step 2: Convert to fraction form
    123,112.29/169,895.07 = 66,523.67/x
  3. Step 3: Cross multiply
    123,112.29x = 169,895.07 × 66,523.67
  4. Step 4: Simplify right side
    123,112.29x = 11,302,042,721.83
  5. Step 5: Solve for x
    x = 11,302,042,721.83/123,112.29
  6. Step 6: Final answer
    x = 91,802.72

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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.