Home / 158,180.24-218,287.10-90,208.28

Finding the Fourth Proportional to 158,180.24, 218,287.10 and 90,208.28

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Solution

The fourth proportional to 158,180.24, 218,287.10 and 90,208.28 is: 124,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,180.24 : 218,287.10 = 90,208.28 : x
  2. Step 2: Convert to fraction form
    158,180.24/218,287.10 = 90,208.28/x
  3. Step 3: Cross multiply
    158,180.24x = 218,287.10 × 90,208.28
  4. Step 4: Simplify right side
    158,180.24x = 19,691,303,837.19
  5. Step 5: Solve for x
    x = 19,691,303,837.19/158,180.24
  6. Step 6: Final answer
    x = 124,486.50

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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.