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Finding the Fourth Proportional to 97,813.40, 146,720.10 and 51,157.40

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Solution

The fourth proportional to 97,813.40, 146,720.10 and 51,157.40 is: 76,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,813.40 : 146,720.10 = 51,157.40 : x
  2. Step 2: Convert to fraction form
    97,813.40/146,720.10 = 51,157.40/x
  3. Step 3: Cross multiply
    97,813.40x = 146,720.10 × 51,157.40
  4. Step 4: Simplify right side
    97,813.40x = 7,505,818,843.74
  5. Step 5: Solve for x
    x = 7,505,818,843.74/97,813.40
  6. Step 6: Final answer
    x = 76,736.10

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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.