Home / 156,113.82-215,437.07-84,494.43

Finding the Fourth Proportional to 156,113.82, 215,437.07 and 84,494.43

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Solution

The fourth proportional to 156,113.82, 215,437.07 and 84,494.43 is: 116,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,113.82 : 215,437.07 = 84,494.43 : x
  2. Step 2: Convert to fraction form
    156,113.82/215,437.07 = 84,494.43/x
  3. Step 3: Cross multiply
    156,113.82x = 215,437.07 × 84,494.43
  4. Step 4: Simplify right side
    156,113.82x = 18,203,232,008.05
  5. Step 5: Solve for x
    x = 18,203,232,008.05/156,113.82
  6. Step 6: Final answer
    x = 116,602.31

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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.