Home / 156,904.80-216,521.44-88,917.76

Finding the Fourth Proportional to 156,904.80, 216,521.44 and 88,917.76

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Solution

The fourth proportional to 156,904.80, 216,521.44 and 88,917.76 is: 122,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,904.80 : 216,521.44 = 88,917.76 : x
  2. Step 2: Convert to fraction form
    156,904.80/216,521.44 = 88,917.76/x
  3. Step 3: Cross multiply
    156,904.80x = 216,521.44 × 88,917.76
  4. Step 4: Simplify right side
    156,904.80x = 19,252,601,436.77
  5. Step 5: Solve for x
    x = 19,252,601,436.77/156,904.80
  6. Step 6: Final answer
    x = 122,702.44

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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.