Home / 158,361.36-218,477.85-90,382.11

Finding the Fourth Proportional to 158,361.36, 218,477.85 and 90,382.11

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Solution

The fourth proportional to 158,361.36, 218,477.85 and 90,382.11 is: 124,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,361.36 : 218,477.85 = 90,382.11 : x
  2. Step 2: Convert to fraction form
    158,361.36/218,477.85 = 90,382.11/x
  3. Step 3: Cross multiply
    158,361.36x = 218,477.85 × 90,382.11
  4. Step 4: Simplify right side
    158,361.36x = 19,746,489,071.26
  5. Step 5: Solve for x
    x = 19,746,489,071.26/158,361.36
  6. Step 6: Final answer
    x = 124,692.60

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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.