Home / 131,907.48-181,986.06-74,539.32

Finding the Fourth Proportional to 131,907.48, 181,986.06 and 74,539.32

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Solution

The fourth proportional to 131,907.48, 181,986.06 and 74,539.32 is: 102,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,907.48 : 181,986.06 = 74,539.32 : x
  2. Step 2: Convert to fraction form
    131,907.48/181,986.06 = 74,539.32/x
  3. Step 3: Cross multiply
    131,907.48x = 181,986.06 × 74,539.32
  4. Step 4: Simplify right side
    131,907.48x = 13,565,117,161.88
  5. Step 5: Solve for x
    x = 13,565,117,161.88/131,907.48
  6. Step 6: Final answer
    x = 102,838.12

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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.