Home / 124,674.12-172,043.46-76,930.92

Finding the Fourth Proportional to 124,674.12, 172,043.46 and 76,930.92

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Solution

The fourth proportional to 124,674.12, 172,043.46 and 76,930.92 is: 106,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,674.12 : 172,043.46 = 76,930.92 : x
  2. Step 2: Convert to fraction form
    124,674.12/172,043.46 = 76,930.92/x
  3. Step 3: Cross multiply
    124,674.12x = 172,043.46 × 76,930.92
  4. Step 4: Simplify right side
    124,674.12x = 13,235,461,657.78
  5. Step 5: Solve for x
    x = 13,235,461,657.78/124,674.12
  6. Step 6: Final answer
    x = 106,160.46

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Double scale
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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.