Home / 156,263.34-215,643.96-84,643.14

Finding the Fourth Proportional to 156,263.34, 215,643.96 and 84,643.14

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Solution

The fourth proportional to 156,263.34, 215,643.96 and 84,643.14 is: 116,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,263.34 : 215,643.96 = 84,643.14 : x
  2. Step 2: Convert to fraction form
    156,263.34/215,643.96 = 84,643.14/x
  3. Step 3: Cross multiply
    156,263.34x = 215,643.96 × 84,643.14
  4. Step 4: Simplify right side
    156,263.34x = 18,252,781,896.43
  5. Step 5: Solve for x
    x = 18,252,781,896.43/156,263.34
  6. Step 6: Final answer
    x = 116,807.83

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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.