Home / 156,064.36-215,367.20-84,442.80

Finding the Fourth Proportional to 156,064.36, 215,367.20 and 84,442.80

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Solution

The fourth proportional to 156,064.36, 215,367.20 and 84,442.80 is: 116,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,064.36 : 215,367.20 = 84,442.80 : x
  2. Step 2: Convert to fraction form
    156,064.36/215,367.20 = 84,442.80/x
  3. Step 3: Cross multiply
    156,064.36x = 215,367.20 × 84,442.80
  4. Step 4: Simplify right side
    156,064.36x = 18,186,209,396.16
  5. Step 5: Solve for x
    x = 18,186,209,396.16/156,064.36
  6. Step 6: Final answer
    x = 116,530.19

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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.