Home / 74,136.17-102,307.97-40,144.93

Finding the Fourth Proportional to 74,136.17, 102,307.97 and 40,144.93

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Solution

The fourth proportional to 74,136.17, 102,307.97 and 40,144.93 is: 55,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,136.17 : 102,307.97 = 40,144.93 : x
  2. Step 2: Convert to fraction form
    74,136.17/102,307.97 = 40,144.93/x
  3. Step 3: Cross multiply
    74,136.17x = 102,307.97 × 40,144.93
  4. Step 4: Simplify right side
    74,136.17x = 4,107,145,837.60
  5. Step 5: Solve for x
    x = 4,107,145,837.60/74,136.17
  6. Step 6: Final answer
    x = 55,400.03

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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.