Home / 191,528.21-264,306.47-105,485.56

Finding the Fourth Proportional to 191,528.21, 264,306.47 and 105,485.56

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Solution

The fourth proportional to 191,528.21, 264,306.47 and 105,485.56 is: 145,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,528.21 : 264,306.47 = 105,485.56 : x
  2. Step 2: Convert to fraction form
    191,528.21/264,306.47 = 105,485.56/x
  3. Step 3: Cross multiply
    191,528.21x = 264,306.47 × 105,485.56
  4. Step 4: Simplify right side
    191,528.21x = 27,880,514,811.38
  5. Step 5: Solve for x
    x = 27,880,514,811.38/191,528.21
  6. Step 6: Final answer
    x = 145,568.71

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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.