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Finding the Fourth Proportional to 146,063.80, 201,566.90 and 78,995.80

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Solution

The fourth proportional to 146,063.80, 201,566.90 and 78,995.80 is: 109,013.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,063.80 : 201,566.90 = 78,995.80 : x
  2. Step 2: Convert to fraction form
    146,063.80/201,566.90 = 78,995.80/x
  3. Step 3: Cross multiply
    146,063.80x = 201,566.90 × 78,995.80
  4. Step 4: Simplify right side
    146,063.80x = 15,922,938,519.02
  5. Step 5: Solve for x
    x = 15,922,938,519.02/146,063.80
  6. Step 6: Final answer
    x = 109,013.59

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1.5x scale

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.