Home / 118,307.86-163,268.70-64,596.96

Finding the Fourth Proportional to 118,307.86, 163,268.70 and 64,596.96

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Solution

The fourth proportional to 118,307.86, 163,268.70 and 64,596.96 is: 89,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,307.86 : 163,268.70 = 64,596.96 : x
  2. Step 2: Convert to fraction form
    118,307.86/163,268.70 = 64,596.96/x
  3. Step 3: Cross multiply
    118,307.86x = 163,268.70 × 64,596.96
  4. Step 4: Simplify right side
    118,307.86x = 10,546,661,683.15
  5. Step 5: Solve for x
    x = 10,546,661,683.15/118,307.86
  6. Step 6: Final answer
    x = 89,145.91

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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.