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Finding the Fourth Proportional to 111,714.48, 154,162.08 and 61,413.12

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Solution

The fourth proportional to 111,714.48, 154,162.08 and 61,413.12 is: 84,747.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,714.48 : 154,162.08 = 61,413.12 : x
  2. Step 2: Convert to fraction form
    111,714.48/154,162.08 = 61,413.12/x
  3. Step 3: Cross multiply
    111,714.48x = 154,162.08 × 61,413.12
  4. Step 4: Simplify right side
    111,714.48x = 9,467,574,318.49
  5. Step 5: Solve for x
    x = 9,467,574,318.49/111,714.48
  6. Step 6: Final answer
    x = 84,747.96

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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.