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Finding the Fourth Proportional to 145,285.66, 200,413.26 and 135,010.67

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Solution

The fourth proportional to 145,285.66, 200,413.26 and 135,010.67 is: 186,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,285.66 : 200,413.26 = 135,010.67 : x
  2. Step 2: Convert to fraction form
    145,285.66/200,413.26 = 135,010.67/x
  3. Step 3: Cross multiply
    145,285.66x = 200,413.26 × 135,010.67
  4. Step 4: Simplify right side
    145,285.66x = 27,057,929,010.52
  5. Step 5: Solve for x
    x = 27,057,929,010.52/145,285.66
  6. Step 6: Final answer
    x = 186,239.51

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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.