Home / 135,195.08-186,582.48-74,779.88

Finding the Fourth Proportional to 135,195.08, 186,582.48 and 74,779.88

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Solution

The fourth proportional to 135,195.08, 186,582.48 and 74,779.88 is: 103,203.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,195.08 : 186,582.48 = 74,779.88 : x
  2. Step 2: Convert to fraction form
    135,195.08/186,582.48 = 74,779.88/x
  3. Step 3: Cross multiply
    135,195.08x = 186,582.48 × 74,779.88
  4. Step 4: Simplify right side
    135,195.08x = 13,952,615,464.50
  5. Step 5: Solve for x
    x = 13,952,615,464.50/135,195.08
  6. Step 6: Final answer
    x = 103,203.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.