Home / 105,733.03-145,913.46-57,985.96

Finding the Fourth Proportional to 105,733.03, 145,913.46 and 57,985.96

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Solution

The fourth proportional to 105,733.03, 145,913.46 and 57,985.96 is: 80,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,733.03 : 145,913.46 = 57,985.96 : x
  2. Step 2: Convert to fraction form
    105,733.03/145,913.46 = 57,985.96/x
  3. Step 3: Cross multiply
    105,733.03x = 145,913.46 × 57,985.96
  4. Step 4: Simplify right side
    105,733.03x = 8,460,932,055.02
  5. Step 5: Solve for x
    x = 8,460,932,055.02/105,733.03
  6. Step 6: Final answer
    x = 80,021.66

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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.