Home / 118,619.64-177,732.60-83,485.46

Finding the Fourth Proportional to 118,619.64, 177,732.60 and 83,485.46

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Solution

The fourth proportional to 118,619.64, 177,732.60 and 83,485.46 is: 125,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,619.64 : 177,732.60 = 83,485.46 : x
  2. Step 2: Convert to fraction form
    118,619.64/177,732.60 = 83,485.46/x
  3. Step 3: Cross multiply
    118,619.64x = 177,732.60 × 83,485.46
  4. Step 4: Simplify right side
    118,619.64x = 14,838,087,868.00
  5. Step 5: Solve for x
    x = 14,838,087,868.00/118,619.64
  6. Step 6: Final answer
    x = 125,089.64

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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.