Home / 123,857.51-170,927.40-70,141.37

Finding the Fourth Proportional to 123,857.51, 170,927.40 and 70,141.37

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Solution

The fourth proportional to 123,857.51, 170,927.40 and 70,141.37 is: 96,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,857.51 : 170,927.40 = 70,141.37 : x
  2. Step 2: Convert to fraction form
    123,857.51/170,927.40 = 70,141.37/x
  3. Step 3: Cross multiply
    123,857.51x = 170,927.40 × 70,141.37
  4. Step 4: Simplify right side
    123,857.51x = 11,989,082,006.54
  5. Step 5: Solve for x
    x = 11,989,082,006.54/123,857.51
  6. Step 6: Final answer
    x = 96,797.38

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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.