Home / 257,110.56-385,626.24-70,136.64

Finding the Fourth Proportional to 257,110.56, 385,626.24 and 70,136.64

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Solution

The fourth proportional to 257,110.56, 385,626.24 and 70,136.64 is: 105,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,110.56 : 385,626.24 = 70,136.64 : x
  2. Step 2: Convert to fraction form
    257,110.56/385,626.24 = 70,136.64/x
  3. Step 3: Cross multiply
    257,110.56x = 385,626.24 × 70,136.64
  4. Step 4: Simplify right side
    257,110.56x = 27,046,528,769.43
  5. Step 5: Solve for x
    x = 27,046,528,769.43/257,110.56
  6. Step 6: Final answer
    x = 105,194.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.