Home / 104,261.15-143,880.63-56,514.28

Finding the Fourth Proportional to 104,261.15, 143,880.63 and 56,514.28

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Solution

The fourth proportional to 104,261.15, 143,880.63 and 56,514.28 is: 77,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,261.15 : 143,880.63 = 56,514.28 : x
  2. Step 2: Convert to fraction form
    104,261.15/143,880.63 = 56,514.28/x
  3. Step 3: Cross multiply
    104,261.15x = 143,880.63 × 56,514.28
  4. Step 4: Simplify right side
    104,261.15x = 8,131,310,210.40
  5. Step 5: Solve for x
    x = 8,131,310,210.40/104,261.15
  6. Step 6: Final answer
    x = 77,989.84

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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.