Home / 257,145.03-385,495.47-124,118.73

Finding the Fourth Proportional to 257,145.03, 385,495.47 and 124,118.73

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Solution

The fourth proportional to 257,145.03, 385,495.47 and 124,118.73 is: 186,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,145.03 : 385,495.47 = 124,118.73 : x
  2. Step 2: Convert to fraction form
    257,145.03/385,495.47 = 124,118.73/x
  3. Step 3: Cross multiply
    257,145.03x = 385,495.47 × 124,118.73
  4. Step 4: Simplify right side
    257,145.03x = 47,847,208,157.15
  5. Step 5: Solve for x
    x = 47,847,208,157.15/257,145.03
  6. Step 6: Final answer
    x = 186,070.90

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1.5x scale

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.