Home / 123,250.34-170,085.32-66,661.58

Finding the Fourth Proportional to 123,250.34, 170,085.32 and 66,661.58

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Solution

The fourth proportional to 123,250.34, 170,085.32 and 66,661.58 is: 91,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,250.34 : 170,085.32 = 66,661.58 : x
  2. Step 2: Convert to fraction form
    123,250.34/170,085.32 = 66,661.58/x
  3. Step 3: Cross multiply
    123,250.34x = 170,085.32 × 66,661.58
  4. Step 4: Simplify right side
    123,250.34x = 11,338,156,166.01
  5. Step 5: Solve for x
    x = 11,338,156,166.01/123,250.34
  6. Step 6: Final answer
    x = 91,992.90

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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.