Home / 151,638.88-209,262.08-84,575.20

Finding the Fourth Proportional to 151,638.88, 209,262.08 and 84,575.20

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Solution

The fourth proportional to 151,638.88, 209,262.08 and 84,575.20 is: 116,714.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,638.88 : 209,262.08 = 84,575.20 : x
  2. Step 2: Convert to fraction form
    151,638.88/209,262.08 = 84,575.20/x
  3. Step 3: Cross multiply
    151,638.88x = 209,262.08 × 84,575.20
  4. Step 4: Simplify right side
    151,638.88x = 17,698,382,268.42
  5. Step 5: Solve for x
    x = 17,698,382,268.42/151,638.88
  6. Step 6: Final answer
    x = 116,714.01

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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.