Home / 191,146.50-263,782.47-106,263.56

Finding the Fourth Proportional to 191,146.50, 263,782.47 and 106,263.56

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Solution

The fourth proportional to 191,146.50, 263,782.47 and 106,263.56 is: 146,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,146.50 : 263,782.47 = 106,263.56 : x
  2. Step 2: Convert to fraction form
    191,146.50/263,782.47 = 106,263.56/x
  3. Step 3: Cross multiply
    191,146.50x = 263,782.47 × 106,263.56
  4. Step 4: Simplify right side
    191,146.50x = 28,030,465,385.74
  5. Step 5: Solve for x
    x = 28,030,465,385.74/191,146.50
  6. Step 6: Final answer
    x = 146,643.89

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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.