Home / 158,284.13-218,452.95-90,285.54

Finding the Fourth Proportional to 158,284.13, 218,452.95 and 90,285.54

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Solution

The fourth proportional to 158,284.13, 218,452.95 and 90,285.54 is: 124,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,284.13 : 218,452.95 = 90,285.54 : x
  2. Step 2: Convert to fraction form
    158,284.13/218,452.95 = 90,285.54/x
  3. Step 3: Cross multiply
    158,284.13x = 218,452.95 × 90,285.54
  4. Step 4: Simplify right side
    158,284.13x = 19,723,141,736.14
  5. Step 5: Solve for x
    x = 19,723,141,736.14/158,284.13
  6. Step 6: Final answer
    x = 124,605.94

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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.