Home / 257,136.20-385,953.30-124,109.88

Finding the Fourth Proportional to 257,136.20, 385,953.30 and 124,109.88

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Solution

The fourth proportional to 257,136.20, 385,953.30 and 124,109.88 is: 186,285.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,136.20 : 385,953.30 = 124,109.88 : x
  2. Step 2: Convert to fraction form
    257,136.20/385,953.30 = 124,109.88/x
  3. Step 3: Cross multiply
    257,136.20x = 385,953.30 × 124,109.88
  4. Step 4: Simplify right side
    257,136.20x = 47,900,617,748.60
  5. Step 5: Solve for x
    x = 47,900,617,748.60/257,136.20
  6. Step 6: Final answer
    x = 186,285.00

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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.