Home / 118,083.90-162,951.75-64,368.06

Finding the Fourth Proportional to 118,083.90, 162,951.75 and 64,368.06

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Solution

The fourth proportional to 118,083.90, 162,951.75 and 64,368.06 is: 88,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,083.90 : 162,951.75 = 64,368.06 : x
  2. Step 2: Convert to fraction form
    118,083.90/162,951.75 = 64,368.06/x
  3. Step 3: Cross multiply
    118,083.90x = 162,951.75 × 64,368.06
  4. Step 4: Simplify right side
    118,083.90x = 10,488,888,021.11
  5. Step 5: Solve for x
    x = 10,488,888,021.11/118,083.90
  6. Step 6: Final answer
    x = 88,825.72

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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.