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Finding the Fourth Proportional to 101,320.80, 151,989.84 and 26,450.88

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Solution

The fourth proportional to 101,320.80, 151,989.84 and 26,450.88 is: 39,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,320.80 : 151,989.84 = 26,450.88 : x
  2. Step 2: Convert to fraction form
    101,320.80/151,989.84 = 26,450.88/x
  3. Step 3: Cross multiply
    101,320.80x = 151,989.84 × 26,450.88
  4. Step 4: Simplify right side
    101,320.80x = 4,020,265,019.06
  5. Step 5: Solve for x
    x = 4,020,265,019.06/101,320.80
  6. Step 6: Final answer
    x = 39,678.58

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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.