Home / 156,104.04-215,425.14-84,485.58

Finding the Fourth Proportional to 156,104.04, 215,425.14 and 84,485.58

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Solution

The fourth proportional to 156,104.04, 215,425.14 and 84,485.58 is: 116,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,104.04 : 215,425.14 = 84,485.58 : x
  2. Step 2: Convert to fraction form
    156,104.04/215,425.14 = 84,485.58/x
  3. Step 3: Cross multiply
    156,104.04x = 215,425.14 × 84,485.58
  4. Step 4: Simplify right side
    156,104.04x = 18,200,317,899.48
  5. Step 5: Solve for x
    x = 18,200,317,899.48/156,104.04
  6. Step 6: Final answer
    x = 116,590.95

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1.5x scale

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.