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Finding the Fourth Proportional to 97,506.40, 146,259.60 and 68,015.20

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Solution

The fourth proportional to 97,506.40, 146,259.60 and 68,015.20 is: 102,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,506.40 : 146,259.60 = 68,015.20 : x
  2. Step 2: Convert to fraction form
    97,506.40/146,259.60 = 68,015.20/x
  3. Step 3: Cross multiply
    97,506.40x = 146,259.60 × 68,015.20
  4. Step 4: Simplify right side
    97,506.40x = 9,947,875,945.92
  5. Step 5: Solve for x
    x = 9,947,875,945.92/97,506.40
  6. Step 6: Final answer
    x = 102,022.80

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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.