Home / 99,215.16-136,918.47-53,894.04

Finding the Fourth Proportional to 99,215.16, 136,918.47 and 53,894.04

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Solution

The fourth proportional to 99,215.16, 136,918.47 and 53,894.04 is: 74,374.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,215.16 : 136,918.47 = 53,894.04 : x
  2. Step 2: Convert to fraction form
    99,215.16/136,918.47 = 53,894.04/x
  3. Step 3: Cross multiply
    99,215.16x = 136,918.47 × 53,894.04
  4. Step 4: Simplify right side
    99,215.16x = 7,379,089,498.92
  5. Step 5: Solve for x
    x = 7,379,089,498.92/99,215.16
  6. Step 6: Final answer
    x = 74,374.62

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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.