Home / 140,169.39-193,430.70-76,508.25

Finding the Fourth Proportional to 140,169.39, 193,430.70 and 76,508.25

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Solution

The fourth proportional to 140,169.39, 193,430.70 and 76,508.25 is: 105,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,169.39 : 193,430.70 = 76,508.25 : x
  2. Step 2: Convert to fraction form
    140,169.39/193,430.70 = 76,508.25/x
  3. Step 3: Cross multiply
    140,169.39x = 193,430.70 × 76,508.25
  4. Step 4: Simplify right side
    140,169.39x = 14,799,044,353.28
  5. Step 5: Solve for x
    x = 14,799,044,353.28/140,169.39
  6. Step 6: Final answer
    x = 105,579.72

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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.