Home / 185,774.09-256,368.23-105,217.19

Finding the Fourth Proportional to 185,774.09, 256,368.23 and 105,217.19

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Solution

The fourth proportional to 185,774.09, 256,368.23 and 105,217.19 is: 145,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,774.09 : 256,368.23 = 105,217.19 : x
  2. Step 2: Convert to fraction form
    185,774.09/256,368.23 = 105,217.19/x
  3. Step 3: Cross multiply
    185,774.09x = 256,368.23 × 105,217.19
  4. Step 4: Simplify right side
    185,774.09x = 26,974,344,765.87
  5. Step 5: Solve for x
    x = 26,974,344,765.87/185,774.09
  6. Step 6: Final answer
    x = 145,199.71

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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.