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Finding the Fourth Proportional to 145,235.67, 218,040.08 and 111,976.86

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Solution

The fourth proportional to 145,235.67, 218,040.08 and 111,976.86 is: 168,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,235.67 : 218,040.08 = 111,976.86 : x
  2. Step 2: Convert to fraction form
    145,235.67/218,040.08 = 111,976.86/x
  3. Step 3: Cross multiply
    145,235.67x = 218,040.08 × 111,976.86
  4. Step 4: Simplify right side
    145,235.67x = 24,415,442,952.66
  5. Step 5: Solve for x
    x = 24,415,442,952.66/145,235.67
  6. Step 6: Final answer
    x = 168,109.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.