Home / 156,026-215,316.42-84,406.36

Finding the Fourth Proportional to 156,026, 215,316.42 and 84,406.36

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Solution

The fourth proportional to 156,026, 215,316.42 and 84,406.36 is: 116,481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,026 : 215,316.42 = 84,406.36 : x
  2. Step 2: Convert to fraction form
    156,026/215,316.42 = 84,406.36/x
  3. Step 3: Cross multiply
    156,026x = 215,316.42 × 84,406.36
  4. Step 4: Simplify right side
    156,026x = 18,174,075,260.43
  5. Step 5: Solve for x
    x = 18,174,075,260.43/156,026
  6. Step 6: Final answer
    x = 116,481.07

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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.