Home / 91,739.17-137,633.36-73,089.53

Finding the Fourth Proportional to 91,739.17, 137,633.36 and 73,089.53

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Solution

The fourth proportional to 91,739.17, 137,633.36 and 73,089.53 is: 109,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,739.17 : 137,633.36 = 73,089.53 : x
  2. Step 2: Convert to fraction form
    91,739.17/137,633.36 = 73,089.53/x
  3. Step 3: Cross multiply
    91,739.17x = 137,633.36 × 73,089.53
  4. Step 4: Simplify right side
    91,739.17x = 10,059,557,594.72
  5. Step 5: Solve for x
    x = 10,059,557,594.72/91,739.17
  6. Step 6: Final answer
    x = 109,653.90

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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.