Home / 132,678.72-183,100.48-75,317.12

Finding the Fourth Proportional to 132,678.72, 183,100.48 and 75,317.12

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Solution

The fourth proportional to 132,678.72, 183,100.48 and 75,317.12 is: 103,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,678.72 : 183,100.48 = 75,317.12 : x
  2. Step 2: Convert to fraction form
    132,678.72/183,100.48 = 75,317.12/x
  3. Step 3: Cross multiply
    132,678.72x = 183,100.48 × 75,317.12
  4. Step 4: Simplify right side
    132,678.72x = 13,790,600,824.22
  5. Step 5: Solve for x
    x = 13,790,600,824.22/132,678.72
  6. Step 6: Final answer
    x = 103,939.81

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1.5x scale

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.