Home / 131,804.16-181,890.59-71,374.80

Finding the Fourth Proportional to 131,804.16, 181,890.59 and 71,374.80

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Solution

The fourth proportional to 131,804.16, 181,890.59 and 71,374.80 is: 98,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,804.16 : 181,890.59 = 71,374.80 : x
  2. Step 2: Convert to fraction form
    131,804.16/181,890.59 = 71,374.80/x
  3. Step 3: Cross multiply
    131,804.16x = 181,890.59 × 71,374.80
  4. Step 4: Simplify right side
    131,804.16x = 12,982,404,483.13
  5. Step 5: Solve for x
    x = 12,982,404,483.13/131,804.16
  6. Step 6: Final answer
    x = 98,497.68

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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.