Home / 151,475.10-209,051.19-91,065.42

Finding the Fourth Proportional to 151,475.10, 209,051.19 and 91,065.42

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Solution

The fourth proportional to 151,475.10, 209,051.19 and 91,065.42 is: 125,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,475.10 : 209,051.19 = 91,065.42 : x
  2. Step 2: Convert to fraction form
    151,475.10/209,051.19 = 91,065.42/x
  3. Step 3: Cross multiply
    151,475.10x = 209,051.19 × 91,065.42
  4. Step 4: Simplify right side
    151,475.10x = 19,037,334,418.85
  5. Step 5: Solve for x
    x = 19,037,334,418.85/151,475.10
  6. Step 6: Final answer
    x = 125,679.63

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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.