Home / 186,010.23-256,714.20-105,429.14

Finding the Fourth Proportional to 186,010.23, 256,714.20 and 105,429.14

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Solution

The fourth proportional to 186,010.23, 256,714.20 and 105,429.14 is: 145,503.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,010.23 : 256,714.20 = 105,429.14 : x
  2. Step 2: Convert to fraction form
    186,010.23/256,714.20 = 105,429.14/x
  3. Step 3: Cross multiply
    186,010.23x = 256,714.20 × 105,429.14
  4. Step 4: Simplify right side
    186,010.23x = 27,065,156,048.22
  5. Step 5: Solve for x
    x = 27,065,156,048.22/186,010.23
  6. Step 6: Final answer
    x = 145,503.59

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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.