Home / 153,924.03-212,413.09-85,942.05

Finding the Fourth Proportional to 153,924.03, 212,413.09 and 85,942.05

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Solution

The fourth proportional to 153,924.03, 212,413.09 and 85,942.05 is: 118,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,924.03 : 212,413.09 = 85,942.05 : x
  2. Step 2: Convert to fraction form
    153,924.03/212,413.09 = 85,942.05/x
  3. Step 3: Cross multiply
    153,924.03x = 212,413.09 × 85,942.05
  4. Step 4: Simplify right side
    153,924.03x = 18,255,215,971.72
  5. Step 5: Solve for x
    x = 18,255,215,971.72/153,924.03
  6. Step 6: Final answer
    x = 118,598.87

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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.