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Finding the Fourth Proportional to 138,242.07, 207,413.03 and 48,298.07

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Solution

The fourth proportional to 138,242.07, 207,413.03 and 48,298.07 is: 72,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,242.07 : 207,413.03 = 48,298.07 : x
  2. Step 2: Convert to fraction form
    138,242.07/207,413.03 = 48,298.07/x
  3. Step 3: Cross multiply
    138,242.07x = 207,413.03 × 48,298.07
  4. Step 4: Simplify right side
    138,242.07x = 10,017,649,681.13
  5. Step 5: Solve for x
    x = 10,017,649,681.13/138,242.07
  6. Step 6: Final answer
    x = 72,464.55

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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.