Home / 109,011.75-163,451.74-71,089.17

Finding the Fourth Proportional to 109,011.75, 163,451.74 and 71,089.17

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Solution

The fourth proportional to 109,011.75, 163,451.74 and 71,089.17 is: 106,590.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,011.75 : 163,451.74 = 71,089.17 : x
  2. Step 2: Convert to fraction form
    109,011.75/163,451.74 = 71,089.17/x
  3. Step 3: Cross multiply
    109,011.75x = 163,451.74 × 71,089.17
  4. Step 4: Simplify right side
    109,011.75x = 11,619,648,531.66
  5. Step 5: Solve for x
    x = 11,619,648,531.66/109,011.75
  6. Step 6: Final answer
    x = 106,590.79

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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.