Home / 156,379.47-215,803.94-84,759.27

Finding the Fourth Proportional to 156,379.47, 215,803.94 and 84,759.27

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Solution

The fourth proportional to 156,379.47, 215,803.94 and 84,759.27 is: 116,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,379.47 : 215,803.94 = 84,759.27 : x
  2. Step 2: Convert to fraction form
    156,379.47/215,803.94 = 84,759.27/x
  3. Step 3: Cross multiply
    156,379.47x = 215,803.94 × 84,759.27
  4. Step 4: Simplify right side
    156,379.47x = 18,291,384,417.52
  5. Step 5: Solve for x
    x = 18,291,384,417.52/156,379.47
  6. Step 6: Final answer
    x = 116,967.94

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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.