Home / 131,282.64-181,415.28-107,400.60

Finding the Fourth Proportional to 131,282.64, 181,415.28 and 107,400.60

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Solution

The fourth proportional to 131,282.64, 181,415.28 and 107,400.60 is: 148,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,282.64 : 181,415.28 = 107,400.60 : x
  2. Step 2: Convert to fraction form
    131,282.64/181,415.28 = 107,400.60/x
  3. Step 3: Cross multiply
    131,282.64x = 181,415.28 × 107,400.60
  4. Step 4: Simplify right side
    131,282.64x = 19,484,109,921.17
  5. Step 5: Solve for x
    x = 19,484,109,921.17/131,282.64
  6. Step 6: Final answer
    x = 148,413.45

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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.