Home / 172,447.80-237,931.38-100,845.42

Finding the Fourth Proportional to 172,447.80, 237,931.38 and 100,845.42

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Solution

The fourth proportional to 172,447.80, 237,931.38 and 100,845.42 is: 139,139.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,447.80 : 237,931.38 = 100,845.42 : x
  2. Step 2: Convert to fraction form
    172,447.80/237,931.38 = 100,845.42/x
  3. Step 3: Cross multiply
    172,447.80x = 237,931.38 × 100,845.42
  4. Step 4: Simplify right side
    172,447.80x = 23,994,289,947.28
  5. Step 5: Solve for x
    x = 23,994,289,947.28/172,447.80
  6. Step 6: Final answer
    x = 139,139.44

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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.