Home / 156,256.51-215,634.05-84,636.31

Finding the Fourth Proportional to 156,256.51, 215,634.05 and 84,636.31

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Solution

The fourth proportional to 156,256.51, 215,634.05 and 84,636.31 is: 116,798.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,256.51 : 215,634.05 = 84,636.31 : x
  2. Step 2: Convert to fraction form
    156,256.51/215,634.05 = 84,636.31/x
  3. Step 3: Cross multiply
    156,256.51x = 215,634.05 × 84,636.31
  4. Step 4: Simplify right side
    156,256.51x = 18,250,470,302.36
  5. Step 5: Solve for x
    x = 18,250,470,302.36/156,256.51
  6. Step 6: Final answer
    x = 116,798.14

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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.