Home / 98,904.16-136,489.64-54,192.16

Finding the Fourth Proportional to 98,904.16, 136,489.64 and 54,192.16

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Solution

The fourth proportional to 98,904.16, 136,489.64 and 54,192.16 is: 74,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,904.16 : 136,489.64 = 54,192.16 : x
  2. Step 2: Convert to fraction form
    98,904.16/136,489.64 = 54,192.16/x
  3. Step 3: Cross multiply
    98,904.16x = 136,489.64 × 54,192.16
  4. Step 4: Simplify right side
    98,904.16x = 7,396,668,409.22
  5. Step 5: Solve for x
    x = 7,396,668,409.22/98,904.16
  6. Step 6: Final answer
    x = 74,786.22

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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.