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Finding the Fourth Proportional to 146,130.50, 201,660.10 and 79,062.50

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Solution

The fourth proportional to 146,130.50, 201,660.10 and 79,062.50 is: 109,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,130.50 : 201,660.10 = 79,062.50 : x
  2. Step 2: Convert to fraction form
    146,130.50/201,660.10 = 79,062.50/x
  3. Step 3: Cross multiply
    146,130.50x = 201,660.10 × 79,062.50
  4. Step 4: Simplify right side
    146,130.50x = 15,943,751,656.25
  5. Step 5: Solve for x
    x = 15,943,751,656.25/146,130.50
  6. Step 6: Final answer
    x = 109,106.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.