Home / 145,006.20-218,027.70-122,196.60

Finding the Fourth Proportional to 145,006.20, 218,027.70 and 122,196.60

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Solution

The fourth proportional to 145,006.20, 218,027.70 and 122,196.60 is: 183,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,006.20 : 218,027.70 = 122,196.60 : x
  2. Step 2: Convert to fraction form
    145,006.20/218,027.70 = 122,196.60/x
  3. Step 3: Cross multiply
    145,006.20x = 218,027.70 × 122,196.60
  4. Step 4: Simplify right side
    145,006.20x = 26,642,243,645.82
  5. Step 5: Solve for x
    x = 26,642,243,645.82/145,006.20
  6. Step 6: Final answer
    x = 183,731.76

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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.