Home / 118,619.90-177,670.65-92,116.70

Finding the Fourth Proportional to 118,619.90, 177,670.65 and 92,116.70

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Solution

The fourth proportional to 118,619.90, 177,670.65 and 92,116.70 is: 137,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,619.90 : 177,670.65 = 92,116.70 : x
  2. Step 2: Convert to fraction form
    118,619.90/177,670.65 = 92,116.70/x
  3. Step 3: Cross multiply
    118,619.90x = 177,670.65 × 92,116.70
  4. Step 4: Simplify right side
    118,619.90x = 16,366,433,964.86
  5. Step 5: Solve for x
    x = 16,366,433,964.86/118,619.90
  6. Step 6: Final answer
    x = 137,973.76

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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.