Home / 156,016.13-215,302.08-84,395.98

Finding the Fourth Proportional to 156,016.13, 215,302.08 and 84,395.98

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Solution

The fourth proportional to 156,016.13, 215,302.08 and 84,395.98 is: 116,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,016.13 : 215,302.08 = 84,395.98 : x
  2. Step 2: Convert to fraction form
    156,016.13/215,302.08 = 84,395.98/x
  3. Step 3: Cross multiply
    156,016.13x = 215,302.08 × 84,395.98
  4. Step 4: Simplify right side
    156,016.13x = 18,170,630,037.64
  5. Step 5: Solve for x
    x = 18,170,630,037.64/156,016.13
  6. Step 6: Final answer
    x = 116,466.36

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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.