Home / 154,057.05-212,485.01-97,413.75

Finding the Fourth Proportional to 154,057.05, 212,485.01 and 97,413.75

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Solution

The fourth proportional to 154,057.05, 212,485.01 and 97,413.75 is: 134,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,057.05 : 212,485.01 = 97,413.75 : x
  2. Step 2: Convert to fraction form
    154,057.05/212,485.01 = 97,413.75/x
  3. Step 3: Cross multiply
    154,057.05x = 212,485.01 × 97,413.75
  4. Step 4: Simplify right side
    154,057.05x = 20,698,961,155.82
  5. Step 5: Solve for x
    x = 20,698,961,155.82/154,057.05
  6. Step 6: Final answer
    x = 134,359.06

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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.