Home / 190,830.12-263,335.29-105,941.72

Finding the Fourth Proportional to 190,830.12, 263,335.29 and 105,941.72

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Solution

The fourth proportional to 190,830.12, 263,335.29 and 105,941.72 is: 146,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,830.12 : 263,335.29 = 105,941.72 : x
  2. Step 2: Convert to fraction form
    190,830.12/263,335.29 = 105,941.72/x
  3. Step 3: Cross multiply
    190,830.12x = 263,335.29 × 105,941.72
  4. Step 4: Simplify right side
    190,830.12x = 27,898,193,428.77
  5. Step 5: Solve for x
    x = 27,898,193,428.77/190,830.12
  6. Step 6: Final answer
    x = 146,193.87

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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.