Home / 118,870.37-178,263.09-55,679.70

Finding the Fourth Proportional to 118,870.37, 178,263.09 and 55,679.70

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Solution

The fourth proportional to 118,870.37, 178,263.09 and 55,679.70 is: 83,499.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,870.37 : 178,263.09 = 55,679.70 : x
  2. Step 2: Convert to fraction form
    118,870.37/178,263.09 = 55,679.70/x
  3. Step 3: Cross multiply
    118,870.37x = 178,263.09 × 55,679.70
  4. Step 4: Simplify right side
    118,870.37x = 9,925,635,372.27
  5. Step 5: Solve for x
    x = 9,925,635,372.27/118,870.37
  6. Step 6: Final answer
    x = 83,499.66

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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.