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Finding the Fourth Proportional to 156,323.93, 215,727.21 and 84,703.93

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Solution

The fourth proportional to 156,323.93, 215,727.21 and 84,703.93 is: 116,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,323.93 : 215,727.21 = 84,703.93 : x
  2. Step 2: Convert to fraction form
    156,323.93/215,727.21 = 84,703.93/x
  3. Step 3: Cross multiply
    156,323.93x = 215,727.21 × 84,703.93
  4. Step 4: Simplify right side
    156,323.93x = 18,272,942,494.94
  5. Step 5: Solve for x
    x = 18,272,942,494.94/156,323.93
  6. Step 6: Final answer
    x = 116,891.52

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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.