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Finding the Fourth Proportional to 186,495.04, 279,742.31 and 86,600.61

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Solution

The fourth proportional to 186,495.04, 279,742.31 and 86,600.61 is: 129,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,495.04 : 279,742.31 = 86,600.61 : x
  2. Step 2: Convert to fraction form
    186,495.04/279,742.31 = 86,600.61/x
  3. Step 3: Cross multiply
    186,495.04x = 279,742.31 × 86,600.61
  4. Step 4: Simplify right side
    186,495.04x = 24,225,854,580.56
  5. Step 5: Solve for x
    x = 24,225,854,580.56/186,495.04
  6. Step 6: Final answer
    x = 129,900.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.