Home / 156,466.89-215,920.49-84,845.07

Finding the Fourth Proportional to 156,466.89, 215,920.49 and 84,845.07

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Solution

The fourth proportional to 156,466.89, 215,920.49 and 84,845.07 is: 117,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,466.89 : 215,920.49 = 84,845.07 : x
  2. Step 2: Convert to fraction form
    156,466.89/215,920.49 = 84,845.07/x
  3. Step 3: Cross multiply
    156,466.89x = 215,920.49 × 84,845.07
  4. Step 4: Simplify right side
    156,466.89x = 18,319,788,664.26
  5. Step 5: Solve for x
    x = 18,319,788,664.26/156,466.89
  6. Step 6: Final answer
    x = 117,084.12

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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.