Home / 186,543.36-257,421.66-105,970.56

Finding the Fourth Proportional to 186,543.36, 257,421.66 and 105,970.56

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Solution

The fourth proportional to 186,543.36, 257,421.66 and 105,970.56 is: 146,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,543.36 : 257,421.66 = 105,970.56 : x
  2. Step 2: Convert to fraction form
    186,543.36/257,421.66 = 105,970.56/x
  3. Step 3: Cross multiply
    186,543.36x = 257,421.66 × 105,970.56
  4. Step 4: Simplify right side
    186,543.36x = 27,279,117,466.33
  5. Step 5: Solve for x
    x = 27,279,117,466.33/186,543.36
  6. Step 6: Final answer
    x = 146,234.73

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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.