Home / 158,208.08-218,283.91-90,200.26

Finding the Fourth Proportional to 158,208.08, 218,283.91 and 90,200.26

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Solution

The fourth proportional to 158,208.08, 218,283.91 and 90,200.26 is: 124,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,208.08 : 218,283.91 = 90,200.26 : x
  2. Step 2: Convert to fraction form
    158,208.08/218,283.91 = 90,200.26/x
  3. Step 3: Cross multiply
    158,208.08x = 218,283.91 × 90,200.26
  4. Step 4: Simplify right side
    158,208.08x = 19,689,265,435.82
  5. Step 5: Solve for x
    x = 19,689,265,435.82/158,208.08
  6. Step 6: Final answer
    x = 124,451.71

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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.