Home / 123,087.23-169,860.84-77,785.34

Finding the Fourth Proportional to 123,087.23, 169,860.84 and 77,785.34

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Solution

The fourth proportional to 123,087.23, 169,860.84 and 77,785.34 is: 107,344.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,087.23 : 169,860.84 = 77,785.34 : x
  2. Step 2: Convert to fraction form
    123,087.23/169,860.84 = 77,785.34/x
  3. Step 3: Cross multiply
    123,087.23x = 169,860.84 × 77,785.34
  4. Step 4: Simplify right side
    123,087.23x = 13,212,682,803.16
  5. Step 5: Solve for x
    x = 13,212,682,803.16/123,087.23
  6. Step 6: Final answer
    x = 107,344.06

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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.