Home / 140,103.22-193,343.08-76,442.36

Finding the Fourth Proportional to 140,103.22, 193,343.08 and 76,442.36

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Solution

The fourth proportional to 140,103.22, 193,343.08 and 76,442.36 is: 105,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,103.22 : 193,343.08 = 76,442.36 : x
  2. Step 2: Convert to fraction form
    140,103.22/193,343.08 = 76,442.36/x
  3. Step 3: Cross multiply
    140,103.22x = 193,343.08 × 76,442.36
  4. Step 4: Simplify right side
    140,103.22x = 14,779,601,324.87
  5. Step 5: Solve for x
    x = 14,779,601,324.87/140,103.22
  6. Step 6: Final answer
    x = 105,490.80

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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.