Home / 140,308.98-193,639.74-76,656.36

Finding the Fourth Proportional to 140,308.98, 193,639.74 and 76,656.36

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Solution

The fourth proportional to 140,308.98, 193,639.74 and 76,656.36 is: 105,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,308.98 : 193,639.74 = 76,656.36 : x
  2. Step 2: Convert to fraction form
    140,308.98/193,639.74 = 76,656.36/x
  3. Step 3: Cross multiply
    140,308.98x = 193,639.74 × 76,656.36
  4. Step 4: Simplify right side
    140,308.98x = 14,843,717,619.75
  5. Step 5: Solve for x
    x = 14,843,717,619.75/140,308.98
  6. Step 6: Final answer
    x = 105,793.07

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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.