Home / 145,183.02-217,805.31-51,688.50

Finding the Fourth Proportional to 145,183.02, 217,805.31 and 51,688.50

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Solution

The fourth proportional to 145,183.02, 217,805.31 and 51,688.50 is: 77,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,183.02 : 217,805.31 = 51,688.50 : x
  2. Step 2: Convert to fraction form
    145,183.02/217,805.31 = 51,688.50/x
  3. Step 3: Cross multiply
    145,183.02x = 217,805.31 × 51,688.50
  4. Step 4: Simplify right side
    145,183.02x = 11,258,029,765.94
  5. Step 5: Solve for x
    x = 11,258,029,765.94/145,183.02
  6. Step 6: Final answer
    x = 77,543.71

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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.