Home / 158,222.61-218,336.25-90,242.49

Finding the Fourth Proportional to 158,222.61, 218,336.25 and 90,242.49

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Solution

The fourth proportional to 158,222.61, 218,336.25 and 90,242.49 is: 124,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,222.61 : 218,336.25 = 90,242.49 : x
  2. Step 2: Convert to fraction form
    158,222.61/218,336.25 = 90,242.49/x
  3. Step 3: Cross multiply
    158,222.61x = 218,336.25 × 90,242.49
  4. Step 4: Simplify right side
    158,222.61x = 19,703,205,765.58
  5. Step 5: Solve for x
    x = 19,703,205,765.58/158,222.61
  6. Step 6: Final answer
    x = 124,528.38

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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.