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Finding the Fourth Proportional to 150,413.52, 207,532.44 and 86,736.72

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Solution

The fourth proportional to 150,413.52, 207,532.44 and 86,736.72 is: 119,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,413.52 : 207,532.44 = 86,736.72 : x
  2. Step 2: Convert to fraction form
    150,413.52/207,532.44 = 86,736.72/x
  3. Step 3: Cross multiply
    150,413.52x = 207,532.44 × 86,736.72
  4. Step 4: Simplify right side
    150,413.52x = 18,000,683,139.20
  5. Step 5: Solve for x
    x = 18,000,683,139.20/150,413.52
  6. Step 6: Final answer
    x = 119,674.64

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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.