Home / 156,157.40-215,498.93-84,538.95

Finding the Fourth Proportional to 156,157.40, 215,498.93 and 84,538.95

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Solution

The fourth proportional to 156,157.40, 215,498.93 and 84,538.95 is: 116,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,157.40 : 215,498.93 = 84,538.95 : x
  2. Step 2: Convert to fraction form
    156,157.40/215,498.93 = 84,538.95/x
  3. Step 3: Cross multiply
    156,157.40x = 215,498.93 × 84,538.95
  4. Step 4: Simplify right side
    156,157.40x = 18,218,052,845.63
  5. Step 5: Solve for x
    x = 18,218,052,845.63/156,157.40
  6. Step 6: Final answer
    x = 116,664.68

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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.