Home / 126,978.64-190,466.02-30,916.75

Finding the Fourth Proportional to 126,978.64, 190,466.02 and 30,916.75

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Solution

The fourth proportional to 126,978.64, 190,466.02 and 30,916.75 is: 46,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,978.64 : 190,466.02 = 30,916.75 : x
  2. Step 2: Convert to fraction form
    126,978.64/190,466.02 = 30,916.75/x
  3. Step 3: Cross multiply
    126,978.64x = 190,466.02 × 30,916.75
  4. Step 4: Simplify right side
    126,978.64x = 5,888,590,323.84
  5. Step 5: Solve for x
    x = 5,888,590,323.84/126,978.64
  6. Step 6: Final answer
    x = 46,374.65

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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.