Home / 123,489.06-170,415.54-66,900.48

Finding the Fourth Proportional to 123,489.06, 170,415.54 and 66,900.48

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Solution

The fourth proportional to 123,489.06, 170,415.54 and 66,900.48 is: 92,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,489.06 : 170,415.54 = 66,900.48 : x
  2. Step 2: Convert to fraction form
    123,489.06/170,415.54 = 66,900.48/x
  3. Step 3: Cross multiply
    123,489.06x = 170,415.54 × 66,900.48
  4. Step 4: Simplify right side
    123,489.06x = 11,400,881,425.46
  5. Step 5: Solve for x
    x = 11,400,881,425.46/123,489.06
  6. Step 6: Final answer
    x = 92,323.01

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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.