Home / 140,243.64-193,540.86-76,586.28

Finding the Fourth Proportional to 140,243.64, 193,540.86 and 76,586.28

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Solution

The fourth proportional to 140,243.64, 193,540.86 and 76,586.28 is: 105,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,243.64 : 193,540.86 = 76,586.28 : x
  2. Step 2: Convert to fraction form
    140,243.64/193,540.86 = 76,586.28/x
  3. Step 3: Cross multiply
    140,243.64x = 193,540.86 × 76,586.28
  4. Step 4: Simplify right side
    140,243.64x = 14,822,574,495.40
  5. Step 5: Solve for x
    x = 14,822,574,495.40/140,243.64
  6. Step 6: Final answer
    x = 105,691.60

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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.