Home / 123,701.14-170,708.16-67,112.50

Finding the Fourth Proportional to 123,701.14, 170,708.16 and 67,112.50

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Solution

The fourth proportional to 123,701.14, 170,708.16 and 67,112.50 is: 92,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,701.14 : 170,708.16 = 67,112.50 : x
  2. Step 2: Convert to fraction form
    123,701.14/170,708.16 = 67,112.50/x
  3. Step 3: Cross multiply
    123,701.14x = 170,708.16 × 67,112.50
  4. Step 4: Simplify right side
    123,701.14x = 11,456,651,388
  5. Step 5: Solve for x
    x = 11,456,651,388/123,701.14
  6. Step 6: Final answer
    x = 92,615.57

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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.