Home / 145,949.55-218,865.74-71,047.86

Finding the Fourth Proportional to 145,949.55, 218,865.74 and 71,047.86

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Solution

The fourth proportional to 145,949.55, 218,865.74 and 71,047.86 is: 106,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,949.55 : 218,865.74 = 71,047.86 : x
  2. Step 2: Convert to fraction form
    145,949.55/218,865.74 = 71,047.86/x
  3. Step 3: Cross multiply
    145,949.55x = 218,865.74 × 71,047.86
  4. Step 4: Simplify right side
    145,949.55x = 15,549,942,099.08
  5. Step 5: Solve for x
    x = 15,549,942,099.08/145,949.55
  6. Step 6: Final answer
    x = 106,543.27

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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.