Home / 112,276.36-154,940.97-61,975

Finding the Fourth Proportional to 112,276.36, 154,940.97 and 61,975

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Solution

The fourth proportional to 112,276.36, 154,940.97 and 61,975 is: 85,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,276.36 : 154,940.97 = 61,975 : x
  2. Step 2: Convert to fraction form
    112,276.36/154,940.97 = 61,975/x
  3. Step 3: Cross multiply
    112,276.36x = 154,940.97 × 61,975
  4. Step 4: Simplify right side
    112,276.36x = 9,602,466,615.75
  5. Step 5: Solve for x
    x = 9,602,466,615.75/112,276.36
  6. Step 6: Final answer
    x = 85,525.28

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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.