Home / 250,157.86-345,211.47-139,777.40

Finding the Fourth Proportional to 250,157.86, 345,211.47 and 139,777.40

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Solution

The fourth proportional to 250,157.86, 345,211.47 and 139,777.40 is: 192,889.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,157.86 : 345,211.47 = 139,777.40 : x
  2. Step 2: Convert to fraction form
    250,157.86/345,211.47 = 139,777.40/x
  3. Step 3: Cross multiply
    250,157.86x = 345,211.47 × 139,777.40
  4. Step 4: Simplify right side
    250,157.86x = 48,252,762,589.81
  5. Step 5: Solve for x
    x = 48,252,762,589.81/250,157.86
  6. Step 6: Final answer
    x = 192,889.25

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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.