Home / 186,081.50-256,784.65-105,514.45

Finding the Fourth Proportional to 186,081.50, 256,784.65 and 105,514.45

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Solution

The fourth proportional to 186,081.50, 256,784.65 and 105,514.45 is: 145,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,081.50 : 256,784.65 = 105,514.45 : x
  2. Step 2: Convert to fraction form
    186,081.50/256,784.65 = 105,514.45/x
  3. Step 3: Cross multiply
    186,081.50x = 256,784.65 × 105,514.45
  4. Step 4: Simplify right side
    186,081.50x = 27,094,490,207.44
  5. Step 5: Solve for x
    x = 27,094,490,207.44/186,081.50
  6. Step 6: Final answer
    x = 145,605.50

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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.