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Finding the Fourth Proportional to 101,733.80, 152,600.70 and 86,700.20

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Solution

The fourth proportional to 101,733.80, 152,600.70 and 86,700.20 is: 130,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,733.80 : 152,600.70 = 86,700.20 : x
  2. Step 2: Convert to fraction form
    101,733.80/152,600.70 = 86,700.20/x
  3. Step 3: Cross multiply
    101,733.80x = 152,600.70 × 86,700.20
  4. Step 4: Simplify right side
    101,733.80x = 13,230,511,210.14
  5. Step 5: Solve for x
    x = 13,230,511,210.14/101,733.80
  6. Step 6: Final answer
    x = 130,050.30

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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.