Home / 122,657.15-169,271.66-68,942.00

Finding the Fourth Proportional to 122,657.15, 169,271.66 and 68,942.00

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Solution

The fourth proportional to 122,657.15, 169,271.66 and 68,942.00 is: 95,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,657.15 : 169,271.66 = 68,942.00 : x
  2. Step 2: Convert to fraction form
    122,657.15/169,271.66 = 68,942.00/x
  3. Step 3: Cross multiply
    122,657.15x = 169,271.66 × 68,942.00
  4. Step 4: Simplify right side
    122,657.15x = 11,669,925,592.65
  5. Step 5: Solve for x
    x = 11,669,925,592.65/122,657.15
  6. Step 6: Final answer
    x = 95,142.65

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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.