Home / 107,128.55-160,669.76-43,886.66

Finding the Fourth Proportional to 107,128.55, 160,669.76 and 43,886.66

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Solution

The fourth proportional to 107,128.55, 160,669.76 and 43,886.66 is: 65,820.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.55 : 160,669.76 = 43,886.66 : x
  2. Step 2: Convert to fraction form
    107,128.55/160,669.76 = 43,886.66/x
  3. Step 3: Cross multiply
    107,128.55x = 160,669.76 × 43,886.66
  4. Step 4: Simplify right side
    107,128.55x = 7,051,259,640.79
  5. Step 5: Solve for x
    x = 7,051,259,640.79/107,128.55
  6. Step 6: Final answer
    x = 65,820.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.