Home / 136,843,941.91-188,843,136.74-74,118,480.43

Finding the Fourth Proportional to 136,843,941.91, 188,843,136.74 and 74,118,480.43

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Solution

The fourth proportional to 136,843,941.91, 188,843,136.74 and 74,118,480.43 is: 102,282,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,843,941.91 : 188,843,136.74 = 74,118,480.43 : x
  2. Step 2: Convert to fraction form
    136,843,941.91/188,843,136.74 = 74,118,480.43/x
  3. Step 3: Cross multiply
    136,843,941.91x = 188,843,136.74 × 74,118,480.43
  4. Step 4: Simplify right side
    136,843,941.91x = 13,996,766,334,432,914
  5. Step 5: Solve for x
    x = 13,996,766,334,432,914/136,843,941.91
  6. Step 6: Final answer
    x = 102,282,688.87

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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.