Home / 156,328.48-215,732.64-84,708.80

Finding the Fourth Proportional to 156,328.48, 215,732.64 and 84,708.80

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Solution

The fourth proportional to 156,328.48, 215,732.64 and 84,708.80 is: 116,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,328.48 : 215,732.64 = 84,708.80 : x
  2. Step 2: Convert to fraction form
    156,328.48/215,732.64 = 84,708.80/x
  3. Step 3: Cross multiply
    156,328.48x = 215,732.64 × 84,708.80
  4. Step 4: Simplify right side
    156,328.48x = 18,274,453,055.23
  5. Step 5: Solve for x
    x = 18,274,453,055.23/156,328.48
  6. Step 6: Final answer
    x = 116,897.79

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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.