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Finding the Fourth Proportional to 159,094.40, 219,546.06 and 86,495

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Solution

The fourth proportional to 159,094.40, 219,546.06 and 86,495 is: 119,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,094.40 : 219,546.06 = 86,495 : x
  2. Step 2: Convert to fraction form
    159,094.40/219,546.06 = 86,495/x
  3. Step 3: Cross multiply
    159,094.40x = 219,546.06 × 86,495
  4. Step 4: Simplify right side
    159,094.40x = 18,989,636,459.70
  5. Step 5: Solve for x
    x = 18,989,636,459.70/159,094.40
  6. Step 6: Final answer
    x = 119,360.81

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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.