Home / 140,303.96-193,612.23-76,629.45

Finding the Fourth Proportional to 140,303.96, 193,612.23 and 76,629.45

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Solution

The fourth proportional to 140,303.96, 193,612.23 and 76,629.45 is: 105,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,303.96 : 193,612.23 = 76,629.45 : x
  2. Step 2: Convert to fraction form
    140,303.96/193,612.23 = 76,629.45/x
  3. Step 3: Cross multiply
    140,303.96x = 193,612.23 × 76,629.45
  4. Step 4: Simplify right side
    140,303.96x = 14,836,398,698.17
  5. Step 5: Solve for x
    x = 14,836,398,698.17/140,303.96
  6. Step 6: Final answer
    x = 105,744.69

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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.