Home / 140,303.45-193,611.54-76,628.95

Finding the Fourth Proportional to 140,303.45, 193,611.54 and 76,628.95

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Solution

The fourth proportional to 140,303.45, 193,611.54 and 76,628.95 is: 105,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,303.45 : 193,611.54 = 76,628.95 : x
  2. Step 2: Convert to fraction form
    140,303.45/193,611.54 = 76,628.95/x
  3. Step 3: Cross multiply
    140,303.45x = 193,611.54 × 76,628.95
  4. Step 4: Simplify right side
    140,303.45x = 14,836,249,018.08
  5. Step 5: Solve for x
    x = 14,836,249,018.08/140,303.45
  6. Step 6: Final answer
    x = 105,744.01

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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.