Home / 118,650.06-163,813.53-105,881.31

Finding the Fourth Proportional to 118,650.06, 163,813.53 and 105,881.31

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Solution

The fourth proportional to 118,650.06, 163,813.53 and 105,881.31 is: 146,184.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,650.06 : 163,813.53 = 105,881.31 : x
  2. Step 2: Convert to fraction form
    118,650.06/163,813.53 = 105,881.31/x
  3. Step 3: Cross multiply
    118,650.06x = 163,813.53 × 105,881.31
  4. Step 4: Simplify right side
    118,650.06x = 17,344,791,152.12
  5. Step 5: Solve for x
    x = 17,344,791,152.12/118,650.06
  6. Step 6: Final answer
    x = 146,184.43

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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.