Home / 156,013.43-215,297.19-84,392.82

Finding the Fourth Proportional to 156,013.43, 215,297.19 and 84,392.82

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Solution

The fourth proportional to 156,013.43, 215,297.19 and 84,392.82 is: 116,461.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,013.43 : 215,297.19 = 84,392.82 : x
  2. Step 2: Convert to fraction form
    156,013.43/215,297.19 = 84,392.82/x
  3. Step 3: Cross multiply
    156,013.43x = 215,297.19 × 84,392.82
  4. Step 4: Simplify right side
    156,013.43x = 18,169,537,002.18
  5. Step 5: Solve for x
    x = 18,169,537,002.18/156,013.43
  6. Step 6: Final answer
    x = 116,461.37

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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.