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Finding the Fourth Proportional to 118,352, 163,327.04 and 64,638.56

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Solution

The fourth proportional to 118,352, 163,327.04 and 64,638.56 is: 89,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,352 : 163,327.04 = 64,638.56 : x
  2. Step 2: Convert to fraction form
    118,352/163,327.04 = 64,638.56/x
  3. Step 3: Cross multiply
    118,352x = 163,327.04 × 64,638.56
  4. Step 4: Simplify right side
    118,352x = 10,557,224,674.66
  5. Step 5: Solve for x
    x = 10,557,224,674.66/118,352
  6. Step 6: Final answer
    x = 89,201.91

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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.