Home / 140,503.59-193,897.77-76,845.48

Finding the Fourth Proportional to 140,503.59, 193,897.77 and 76,845.48

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Solution

The fourth proportional to 140,503.59, 193,897.77 and 76,845.48 is: 106,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,503.59 : 193,897.77 = 76,845.48 : x
  2. Step 2: Convert to fraction form
    140,503.59/193,897.77 = 76,845.48/x
  3. Step 3: Cross multiply
    140,503.59x = 193,897.77 × 76,845.48
  4. Step 4: Simplify right side
    140,503.59x = 14,900,167,206.58
  5. Step 5: Solve for x
    x = 14,900,167,206.58/140,503.59
  6. Step 6: Final answer
    x = 106,048.30

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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.