Home / 156,030.88-215,322.32-84,410.96

Finding the Fourth Proportional to 156,030.88, 215,322.32 and 84,410.96

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Solution

The fourth proportional to 156,030.88, 215,322.32 and 84,410.96 is: 116,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,030.88 : 215,322.32 = 84,410.96 : x
  2. Step 2: Convert to fraction form
    156,030.88/215,322.32 = 84,410.96/x
  3. Step 3: Cross multiply
    156,030.88x = 215,322.32 × 84,410.96
  4. Step 4: Simplify right side
    156,030.88x = 18,175,563,740.63
  5. Step 5: Solve for x
    x = 18,175,563,740.63/156,030.88
  6. Step 6: Final answer
    x = 116,486.97

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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.