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Finding the Fourth Proportional to 122,461.58, 168,996.88 and 68,746.70

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Solution

The fourth proportional to 122,461.58, 168,996.88 and 68,746.70 is: 94,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,461.58 : 168,996.88 = 68,746.70 : x
  2. Step 2: Convert to fraction form
    122,461.58/168,996.88 = 68,746.70/x
  3. Step 3: Cross multiply
    122,461.58x = 168,996.88 × 68,746.70
  4. Step 4: Simplify right side
    122,461.58x = 11,617,977,810.30
  5. Step 5: Solve for x
    x = 11,617,977,810.30/122,461.58
  6. Step 6: Final answer
    x = 94,870.39

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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.