Home / 156,658.81-216,193.07-85,038.83

Finding the Fourth Proportional to 156,658.81, 216,193.07 and 85,038.83

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Solution

The fourth proportional to 156,658.81, 216,193.07 and 85,038.83 is: 117,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,658.81 : 216,193.07 = 85,038.83 : x
  2. Step 2: Convert to fraction form
    156,658.81/216,193.07 = 85,038.83/x
  3. Step 3: Cross multiply
    156,658.81x = 216,193.07 × 85,038.83
  4. Step 4: Simplify right side
    156,658.81x = 18,384,804,858.54
  5. Step 5: Solve for x
    x = 18,384,804,858.54/156,658.81
  6. Step 6: Final answer
    x = 117,355.71

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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.