Home / 126,579.36-174,672.54-69,987

Finding the Fourth Proportional to 126,579.36, 174,672.54 and 69,987

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Solution

The fourth proportional to 126,579.36, 174,672.54 and 69,987 is: 96,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,579.36 : 174,672.54 = 69,987 : x
  2. Step 2: Convert to fraction form
    126,579.36/174,672.54 = 69,987/x
  3. Step 3: Cross multiply
    126,579.36x = 174,672.54 × 69,987
  4. Step 4: Simplify right side
    126,579.36x = 12,224,807,056.98
  5. Step 5: Solve for x
    x = 12,224,807,056.98/126,579.36
  6. Step 6: Final answer
    x = 96,578.20

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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.