Home / 123,491.54-170,417.36-66,902.50

Finding the Fourth Proportional to 123,491.54, 170,417.36 and 66,902.50

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Solution

The fourth proportional to 123,491.54, 170,417.36 and 66,902.50 is: 92,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.54 : 170,417.36 = 66,902.50 : x
  2. Step 2: Convert to fraction form
    123,491.54/170,417.36 = 66,902.50/x
  3. Step 3: Cross multiply
    123,491.54x = 170,417.36 × 66,902.50
  4. Step 4: Simplify right side
    123,491.54x = 11,401,347,427.40
  5. Step 5: Solve for x
    x = 11,401,347,427.40/123,491.54
  6. Step 6: Final answer
    x = 92,324.93

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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.