Home / 158,273.48-218,416.80-90,290.33

Finding the Fourth Proportional to 158,273.48, 218,416.80 and 90,290.33

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Solution

The fourth proportional to 158,273.48, 218,416.80 and 90,290.33 is: 124,600.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,273.48 : 218,416.80 = 90,290.33 : x
  2. Step 2: Convert to fraction form
    158,273.48/218,416.80 = 90,290.33/x
  3. Step 3: Cross multiply
    158,273.48x = 218,416.80 × 90,290.33
  4. Step 4: Simplify right side
    158,273.48x = 19,720,923,857.46
  5. Step 5: Solve for x
    x = 19,720,923,857.46/158,273.48
  6. Step 6: Final answer
    x = 124,600.31

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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.