Home / 118,108.59-162,987.66-64,394.07

Finding the Fourth Proportional to 118,108.59, 162,987.66 and 64,394.07

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Solution

The fourth proportional to 118,108.59, 162,987.66 and 64,394.07 is: 88,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,108.59 : 162,987.66 = 64,394.07 : x
  2. Step 2: Convert to fraction form
    118,108.59/162,987.66 = 64,394.07/x
  3. Step 3: Cross multiply
    118,108.59x = 162,987.66 × 64,394.07
  4. Step 4: Simplify right side
    118,108.59x = 10,495,438,787.18
  5. Step 5: Solve for x
    x = 10,495,438,787.18/118,108.59
  6. Step 6: Final answer
    x = 88,862.62

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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.