Home / 156,071.04-215,377.44-84,451.20

Finding the Fourth Proportional to 156,071.04, 215,377.44 and 84,451.20

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Solution

The fourth proportional to 156,071.04, 215,377.44 and 84,451.20 is: 116,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,071.04 : 215,377.44 = 84,451.20 : x
  2. Step 2: Convert to fraction form
    156,071.04/215,377.44 = 84,451.20/x
  3. Step 3: Cross multiply
    156,071.04x = 215,377.44 × 84,451.20
  4. Step 4: Simplify right side
    156,071.04x = 18,188,883,260.93
  5. Step 5: Solve for x
    x = 18,188,883,260.93/156,071.04
  6. Step 6: Final answer
    x = 116,542.33

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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.