Home / 156,256.65-215,634.19-84,636.69

Finding the Fourth Proportional to 156,256.65, 215,634.19 and 84,636.69

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Solution

The fourth proportional to 156,256.65, 215,634.19 and 84,636.69 is: 116,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,256.65 : 215,634.19 = 84,636.69 : x
  2. Step 2: Convert to fraction form
    156,256.65/215,634.19 = 84,636.69/x
  3. Step 3: Cross multiply
    156,256.65x = 215,634.19 × 84,636.69
  4. Step 4: Simplify right side
    156,256.65x = 18,250,563,669.25
  5. Step 5: Solve for x
    x = 18,250,563,669.25/156,256.65
  6. Step 6: Final answer
    x = 116,798.64

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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.