Home / 123,534.62-170,477.76-66,946

Finding the Fourth Proportional to 123,534.62, 170,477.76 and 66,946

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Solution

The fourth proportional to 123,534.62, 170,477.76 and 66,946 is: 92,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,534.62 : 170,477.76 = 66,946 : x
  2. Step 2: Convert to fraction form
    123,534.62/170,477.76 = 66,946/x
  3. Step 3: Cross multiply
    123,534.62x = 170,477.76 × 66,946
  4. Step 4: Simplify right side
    123,534.62x = 11,412,804,120.96
  5. Step 5: Solve for x
    x = 11,412,804,120.96/123,534.62
  6. Step 6: Final answer
    x = 92,385.47

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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.