Home / 156,415.35-215,854.29-84,796.50

Finding the Fourth Proportional to 156,415.35, 215,854.29 and 84,796.50

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Solution

The fourth proportional to 156,415.35, 215,854.29 and 84,796.50 is: 117,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,415.35 : 215,854.29 = 84,796.50 : x
  2. Step 2: Convert to fraction form
    156,415.35/215,854.29 = 84,796.50/x
  3. Step 3: Cross multiply
    156,415.35x = 215,854.29 × 84,796.50
  4. Step 4: Simplify right side
    156,415.35x = 18,303,688,301.99
  5. Step 5: Solve for x
    x = 18,303,688,301.99/156,415.35
  6. Step 6: Final answer
    x = 117,019.77

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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.