Home / 104,172.78-143,758.49-56,426.25

Finding the Fourth Proportional to 104,172.78, 143,758.49 and 56,426.25

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Solution

The fourth proportional to 104,172.78, 143,758.49 and 56,426.25 is: 77,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,172.78 : 143,758.49 = 56,426.25 : x
  2. Step 2: Convert to fraction form
    104,172.78/143,758.49 = 56,426.25/x
  3. Step 3: Cross multiply
    104,172.78x = 143,758.49 × 56,426.25
  4. Step 4: Simplify right side
    104,172.78x = 8,111,752,214.23
  5. Step 5: Solve for x
    x = 8,111,752,214.23/104,172.78
  6. Step 6: Final answer
    x = 77,868.25

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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.