Home / 101,929.09-140,664.03-56,611.27

Finding the Fourth Proportional to 101,929.09, 140,664.03 and 56,611.27

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Solution

The fourth proportional to 101,929.09, 140,664.03 and 56,611.27 is: 78,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,929.09 : 140,664.03 = 56,611.27 : x
  2. Step 2: Convert to fraction form
    101,929.09/140,664.03 = 56,611.27/x
  3. Step 3: Cross multiply
    101,929.09x = 140,664.03 × 56,611.27
  4. Step 4: Simplify right side
    101,929.09x = 7,963,169,381.62
  5. Step 5: Solve for x
    x = 7,963,169,381.62/101,929.09
  6. Step 6: Final answer
    x = 78,124.60

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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.