Home / 88,971.36-122,918.37-74,605.86

Finding the Fourth Proportional to 88,971.36, 122,918.37 and 74,605.86

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Solution

The fourth proportional to 88,971.36, 122,918.37 and 74,605.86 is: 103,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,971.36 : 122,918.37 = 74,605.86 : x
  2. Step 2: Convert to fraction form
    88,971.36/122,918.37 = 74,605.86/x
  3. Step 3: Cross multiply
    88,971.36x = 122,918.37 × 74,605.86
  4. Step 4: Simplify right side
    88,971.36x = 9,170,430,703.65
  5. Step 5: Solve for x
    x = 9,170,430,703.65/88,971.36
  6. Step 6: Final answer
    x = 103,071.72

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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.