Home / 154,090.26-212,622.21-90,413.46

Finding the Fourth Proportional to 154,090.26, 212,622.21 and 90,413.46

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Solution

The fourth proportional to 154,090.26, 212,622.21 and 90,413.46 is: 124,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,090.26 : 212,622.21 = 90,413.46 : x
  2. Step 2: Convert to fraction form
    154,090.26/212,622.21 = 90,413.46/x
  3. Step 3: Cross multiply
    154,090.26x = 212,622.21 × 90,413.46
  4. Step 4: Simplify right side
    154,090.26x = 19,223,909,678.95
  5. Step 5: Solve for x
    x = 19,223,909,678.95/154,090.26
  6. Step 6: Final answer
    x = 124,757.46

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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.