Home / 172,299.09-237,737.88-100,665.27

Finding the Fourth Proportional to 172,299.09, 237,737.88 and 100,665.27

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Solution

The fourth proportional to 172,299.09, 237,737.88 and 100,665.27 is: 138,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,299.09 : 237,737.88 = 100,665.27 : x
  2. Step 2: Convert to fraction form
    172,299.09/237,737.88 = 100,665.27/x
  3. Step 3: Cross multiply
    172,299.09x = 237,737.88 × 100,665.27
  4. Step 4: Simplify right side
    172,299.09x = 23,931,947,879.43
  5. Step 5: Solve for x
    x = 23,931,947,879.43/172,299.09
  6. Step 6: Final answer
    x = 138,897.70

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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.