Home / 185,898.42-256,518.99-105,308.69

Finding the Fourth Proportional to 185,898.42, 256,518.99 and 105,308.69

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Solution

The fourth proportional to 185,898.42, 256,518.99 and 105,308.69 is: 145,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,898.42 : 256,518.99 = 105,308.69 : x
  2. Step 2: Convert to fraction form
    185,898.42/256,518.99 = 105,308.69/x
  3. Step 3: Cross multiply
    185,898.42x = 256,518.99 × 105,308.69
  4. Step 4: Simplify right side
    185,898.42x = 27,013,677,514.43
  5. Step 5: Solve for x
    x = 27,013,677,514.43/185,898.42
  6. Step 6: Final answer
    x = 145,314.19

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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.