Home / 101,915.52-140,638.66-56,596.36

Finding the Fourth Proportional to 101,915.52, 140,638.66 and 56,596.36

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Solution

The fourth proportional to 101,915.52, 140,638.66 and 56,596.36 is: 78,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.52 : 140,638.66 = 56,596.36 : x
  2. Step 2: Convert to fraction form
    101,915.52/140,638.66 = 56,596.36/x
  3. Step 3: Cross multiply
    101,915.52x = 140,638.66 × 56,596.36
  4. Step 4: Simplify right side
    101,915.52x = 7,959,636,231.28
  5. Step 5: Solve for x
    x = 7,959,636,231.28/101,915.52
  6. Step 6: Final answer
    x = 78,100.33

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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.