Home / 145,109.37-217,622.73-56,343.90

Finding the Fourth Proportional to 145,109.37, 217,622.73 and 56,343.90

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Solution

The fourth proportional to 145,109.37, 217,622.73 and 56,343.90 is: 84,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,109.37 : 217,622.73 = 56,343.90 : x
  2. Step 2: Convert to fraction form
    145,109.37/217,622.73 = 56,343.90/x
  3. Step 3: Cross multiply
    145,109.37x = 217,622.73 × 56,343.90
  4. Step 4: Simplify right side
    145,109.37x = 12,261,713,336.85
  5. Step 5: Solve for x
    x = 12,261,713,336.85/145,109.37
  6. Step 6: Final answer
    x = 84,499.80

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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.