Home / 156,113.25-215,435.88-84,493.28

Finding the Fourth Proportional to 156,113.25, 215,435.88 and 84,493.28

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Solution

The fourth proportional to 156,113.25, 215,435.88 and 84,493.28 is: 116,600.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,113.25 : 215,435.88 = 84,493.28 : x
  2. Step 2: Convert to fraction form
    156,113.25/215,435.88 = 84,493.28/x
  3. Step 3: Cross multiply
    156,113.25x = 215,435.88 × 84,493.28
  4. Step 4: Simplify right side
    156,113.25x = 18,202,883,053.71
  5. Step 5: Solve for x
    x = 18,202,883,053.71/156,113.25
  6. Step 6: Final answer
    x = 116,600.50

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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.