Home / 156,908.58-216,535.29-85,288.77

Finding the Fourth Proportional to 156,908.58, 216,535.29 and 85,288.77

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Solution

The fourth proportional to 156,908.58, 216,535.29 and 85,288.77 is: 117,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,908.58 : 216,535.29 = 85,288.77 : x
  2. Step 2: Convert to fraction form
    156,908.58/216,535.29 = 85,288.77/x
  3. Step 3: Cross multiply
    156,908.58x = 216,535.29 × 85,288.77
  4. Step 4: Simplify right side
    156,908.58x = 18,468,028,545.69
  5. Step 5: Solve for x
    x = 18,468,028,545.69/156,908.58
  6. Step 6: Final answer
    x = 117,699.29

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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.