Home / 190,648.70-263,095.50-105,765.76

Finding the Fourth Proportional to 190,648.70, 263,095.50 and 105,765.76

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Solution

The fourth proportional to 190,648.70, 263,095.50 and 105,765.76 is: 145,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,648.70 : 263,095.50 = 105,765.76 : x
  2. Step 2: Convert to fraction form
    190,648.70/263,095.50 = 105,765.76/x
  3. Step 3: Cross multiply
    190,648.70x = 263,095.50 × 105,765.76
  4. Step 4: Simplify right side
    190,648.70x = 27,826,495,510.08
  5. Step 5: Solve for x
    x = 27,826,495,510.08/190,648.70
  6. Step 6: Final answer
    x = 145,956.91

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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.