Home / 98,157.81-147,280.46-51,399.75

Finding the Fourth Proportional to 98,157.81, 147,280.46 and 51,399.75

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Solution

The fourth proportional to 98,157.81, 147,280.46 and 51,399.75 is: 77,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,157.81 : 147,280.46 = 51,399.75 : x
  2. Step 2: Convert to fraction form
    98,157.81/147,280.46 = 51,399.75/x
  3. Step 3: Cross multiply
    98,157.81x = 147,280.46 × 51,399.75
  4. Step 4: Simplify right side
    98,157.81x = 7,570,178,566.89
  5. Step 5: Solve for x
    x = 7,570,178,566.89/98,157.81
  6. Step 6: Final answer
    x = 77,122.53

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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.