Home / 122,238.42-168,771.52-76,368.22

Finding the Fourth Proportional to 122,238.42, 168,771.52 and 76,368.22

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Solution

The fourth proportional to 122,238.42, 168,771.52 and 76,368.22 is: 105,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,238.42 : 168,771.52 = 76,368.22 : x
  2. Step 2: Convert to fraction form
    122,238.42/168,771.52 = 76,368.22/x
  3. Step 3: Cross multiply
    122,238.42x = 168,771.52 × 76,368.22
  4. Step 4: Simplify right side
    122,238.42x = 12,888,780,569.09
  5. Step 5: Solve for x
    x = 12,888,780,569.09/122,238.42
  6. Step 6: Final answer
    x = 105,439.69

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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.