Home / 131,837.76-181,968.66-75,281.94

Finding the Fourth Proportional to 131,837.76, 181,968.66 and 75,281.94

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Solution

The fourth proportional to 131,837.76, 181,968.66 and 75,281.94 is: 103,907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,837.76 : 181,968.66 = 75,281.94 : x
  2. Step 2: Convert to fraction form
    131,837.76/181,968.66 = 75,281.94/x
  3. Step 3: Cross multiply
    131,837.76x = 181,968.66 × 75,281.94
  4. Step 4: Simplify right side
    131,837.76x = 13,698,953,744.00
  5. Step 5: Solve for x
    x = 13,698,953,744.00/131,837.76
  6. Step 6: Final answer
    x = 103,907.66

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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.