Home / 191,542.80-264,329.60-105,499.76

Finding the Fourth Proportional to 191,542.80, 264,329.60 and 105,499.76

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Solution

The fourth proportional to 191,542.80, 264,329.60 and 105,499.76 is: 145,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,542.80 : 264,329.60 = 105,499.76 : x
  2. Step 2: Convert to fraction form
    191,542.80/264,329.60 = 105,499.76/x
  3. Step 3: Cross multiply
    191,542.80x = 264,329.60 × 105,499.76
  4. Step 4: Simplify right side
    191,542.80x = 27,886,709,360.90
  5. Step 5: Solve for x
    x = 27,886,709,360.90/191,542.80
  6. Step 6: Final answer
    x = 145,589.96

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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.