Home / 99,090.54-136,668.51-68,875.26

Finding the Fourth Proportional to 99,090.54, 136,668.51 and 68,875.26

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Solution

The fourth proportional to 99,090.54, 136,668.51 and 68,875.26 is: 94,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,090.54 : 136,668.51 = 68,875.26 : x
  2. Step 2: Convert to fraction form
    99,090.54/136,668.51 = 68,875.26/x
  3. Step 3: Cross multiply
    99,090.54x = 136,668.51 × 68,875.26
  4. Step 4: Simplify right side
    99,090.54x = 9,413,079,160.06
  5. Step 5: Solve for x
    x = 9,413,079,160.06/99,090.54
  6. Step 6: Final answer
    x = 94,994.73

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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.