Home / 104,989.36-157,451.71-30,089.42

Finding the Fourth Proportional to 104,989.36, 157,451.71 and 30,089.42

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Solution

The fourth proportional to 104,989.36, 157,451.71 and 30,089.42 is: 45,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,989.36 : 157,451.71 = 30,089.42 : x
  2. Step 2: Convert to fraction form
    104,989.36/157,451.71 = 30,089.42/x
  3. Step 3: Cross multiply
    104,989.36x = 157,451.71 × 30,089.42
  4. Step 4: Simplify right side
    104,989.36x = 4,737,630,631.91
  5. Step 5: Solve for x
    x = 4,737,630,631.91/104,989.36
  6. Step 6: Final answer
    x = 45,124.86

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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.