Home / 122,120.06-168,526.59-68,405.72

Finding the Fourth Proportional to 122,120.06, 168,526.59 and 68,405.72

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Solution

The fourth proportional to 122,120.06, 168,526.59 and 68,405.72 is: 94,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,120.06 : 168,526.59 = 68,405.72 : x
  2. Step 2: Convert to fraction form
    122,120.06/168,526.59 = 68,405.72/x
  3. Step 3: Cross multiply
    122,120.06x = 168,526.59 × 68,405.72
  4. Step 4: Simplify right side
    122,120.06x = 11,528,182,728.09
  5. Step 5: Solve for x
    x = 11,528,182,728.09/122,120.06
  6. Step 6: Final answer
    x = 94,400.40

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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.