Home / 123,840.51-170,952.22-83,608.76

Finding the Fourth Proportional to 123,840.51, 170,952.22 and 83,608.76

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Solution

The fourth proportional to 123,840.51, 170,952.22 and 83,608.76 is: 115,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.51 : 170,952.22 = 83,608.76 : x
  2. Step 2: Convert to fraction form
    123,840.51/170,952.22 = 83,608.76/x
  3. Step 3: Cross multiply
    123,840.51x = 170,952.22 × 83,608.76
  4. Step 4: Simplify right side
    123,840.51x = 14,293,102,715.40
  5. Step 5: Solve for x
    x = 14,293,102,715.40/123,840.51
  6. Step 6: Final answer
    x = 115,415.41

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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.