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Finding the Fourth Proportional to 98,157.56, 147,280.08 and 51,399.50

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Solution

The fourth proportional to 98,157.56, 147,280.08 and 51,399.50 is: 77,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,157.56 : 147,280.08 = 51,399.50 : x
  2. Step 2: Convert to fraction form
    98,157.56/147,280.08 = 51,399.50/x
  3. Step 3: Cross multiply
    98,157.56x = 147,280.08 × 51,399.50
  4. Step 4: Simplify right side
    98,157.56x = 7,570,122,471.96
  5. Step 5: Solve for x
    x = 7,570,122,471.96/98,157.56
  6. Step 6: Final answer
    x = 77,122.15

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1.5x scale

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.