Home / 156,064.32-215,367.21-84,442.77

Finding the Fourth Proportional to 156,064.32, 215,367.21 and 84,442.77

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Solution

The fourth proportional to 156,064.32, 215,367.21 and 84,442.77 is: 116,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,064.32 : 215,367.21 = 84,442.77 : x
  2. Step 2: Convert to fraction form
    156,064.32/215,367.21 = 84,442.77/x
  3. Step 3: Cross multiply
    156,064.32x = 215,367.21 × 84,442.77
  4. Step 4: Simplify right side
    156,064.32x = 18,186,203,779.57
  5. Step 5: Solve for x
    x = 18,186,203,779.57/156,064.32
  6. Step 6: Final answer
    x = 116,530.18

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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.