Home / 140,174.55-193,438.94-76,508.55

Finding the Fourth Proportional to 140,174.55, 193,438.94 and 76,508.55

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Solution

The fourth proportional to 140,174.55, 193,438.94 and 76,508.55 is: 105,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,174.55 : 193,438.94 = 76,508.55 : x
  2. Step 2: Convert to fraction form
    140,174.55/193,438.94 = 76,508.55/x
  3. Step 3: Cross multiply
    140,174.55x = 193,438.94 × 76,508.55
  4. Step 4: Simplify right side
    140,174.55x = 14,799,732,430.39
  5. Step 5: Solve for x
    x = 14,799,732,430.39/140,174.55
  6. Step 6: Final answer
    x = 105,580.74

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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.