Home / 145,884.08-218,738.60-66,899.36

Finding the Fourth Proportional to 145,884.08, 218,738.60 and 66,899.36

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Solution

The fourth proportional to 145,884.08, 218,738.60 and 66,899.36 is: 100,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,884.08 : 218,738.60 = 66,899.36 : x
  2. Step 2: Convert to fraction form
    145,884.08/218,738.60 = 66,899.36/x
  3. Step 3: Cross multiply
    145,884.08x = 218,738.60 × 66,899.36
  4. Step 4: Simplify right side
    145,884.08x = 14,633,472,347.30
  5. Step 5: Solve for x
    x = 14,633,472,347.30/145,884.08
  6. Step 6: Final answer
    x = 100,308.91

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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.