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Finding the Fourth Proportional to 117,645.89, 162,348.05 and 63,929.12

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Solution

The fourth proportional to 117,645.89, 162,348.05 and 63,929.12 is: 88,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,645.89 : 162,348.05 = 63,929.12 : x
  2. Step 2: Convert to fraction form
    117,645.89/162,348.05 = 63,929.12/x
  3. Step 3: Cross multiply
    117,645.89x = 162,348.05 × 63,929.12
  4. Step 4: Simplify right side
    117,645.89x = 10,378,767,970.22
  5. Step 5: Solve for x
    x = 10,378,767,970.22/117,645.89
  6. Step 6: Final answer
    x = 88,220.40

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1.5x scale

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.