Home / 140,356.04-193,692.69-76,695.20

Finding the Fourth Proportional to 140,356.04, 193,692.69 and 76,695.20

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Solution

The fourth proportional to 140,356.04, 193,692.69 and 76,695.20 is: 105,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,356.04 : 193,692.69 = 76,695.20 : x
  2. Step 2: Convert to fraction form
    140,356.04/193,692.69 = 76,695.20/x
  3. Step 3: Cross multiply
    140,356.04x = 193,692.69 × 76,695.20
  4. Step 4: Simplify right side
    140,356.04x = 14,855,298,629.62
  5. Step 5: Solve for x
    x = 14,855,298,629.62/140,356.04
  6. Step 6: Final answer
    x = 105,840.11

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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.