Home / 104,130.09-143,699.54-56,383.43

Finding the Fourth Proportional to 104,130.09, 143,699.54 and 56,383.43

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Solution

The fourth proportional to 104,130.09, 143,699.54 and 56,383.43 is: 77,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,130.09 : 143,699.54 = 56,383.43 : x
  2. Step 2: Convert to fraction form
    104,130.09/143,699.54 = 56,383.43/x
  3. Step 3: Cross multiply
    104,130.09x = 143,699.54 × 56,383.43
  4. Step 4: Simplify right side
    104,130.09x = 8,102,271,954.21
  5. Step 5: Solve for x
    x = 8,102,271,954.21/104,130.09
  6. Step 6: Final answer
    x = 77,809.13

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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.