Home / 101,467,525.80-151,949,346.30-81,312,133.80

Finding the Fourth Proportional to 101,467,525.80, 151,949,346.30 and 81,312,133.80

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Solution

The fourth proportional to 101,467,525.80, 151,949,346.30 and 81,312,133.80 is: 121,766,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,467,525.80 : 151,949,346.30 = 81,312,133.80 : x
  2. Step 2: Convert to fraction form
    101,467,525.80/151,949,346.30 = 81,312,133.80/x
  3. Step 3: Cross multiply
    101,467,525.80x = 151,949,346.30 × 81,312,133.80
  4. Step 4: Simplify right side
    101,467,525.80x = 12,355,325,577,168,136
  5. Step 5: Solve for x
    x = 12,355,325,577,168,136/101,467,525.80
  6. Step 6: Final answer
    x = 121,766,303.85

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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.