Home / 108,898.09-164,155.14-99,438.73

Finding the Fourth Proportional to 108,898.09, 164,155.14 and 99,438.73

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Solution

The fourth proportional to 108,898.09, 164,155.14 and 99,438.73 is: 149,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,898.09 : 164,155.14 = 99,438.73 : x
  2. Step 2: Convert to fraction form
    108,898.09/164,155.14 = 99,438.73/x
  3. Step 3: Cross multiply
    108,898.09x = 164,155.14 × 99,438.73
  4. Step 4: Simplify right side
    108,898.09x = 16,323,378,147.38
  5. Step 5: Solve for x
    x = 16,323,378,147.38/108,898.09
  6. Step 6: Final answer
    x = 149,895.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.