Home / 122,312.98-168,723.56-76,974.04

Finding the Fourth Proportional to 122,312.98, 168,723.56 and 76,974.04

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Solution

The fourth proportional to 122,312.98, 168,723.56 and 76,974.04 is: 106,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,312.98 : 168,723.56 = 76,974.04 : x
  2. Step 2: Convert to fraction form
    122,312.98/168,723.56 = 76,974.04/x
  3. Step 3: Cross multiply
    122,312.98x = 168,723.56 × 76,974.04
  4. Step 4: Simplify right side
    122,312.98x = 12,987,334,056.38
  5. Step 5: Solve for x
    x = 12,987,334,056.38/122,312.98
  6. Step 6: Final answer
    x = 106,181.16

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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.