Home / 172,320.09-237,756.78-100,659.39

Finding the Fourth Proportional to 172,320.09, 237,756.78 and 100,659.39

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Solution

The fourth proportional to 172,320.09, 237,756.78 and 100,659.39 is: 138,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,320.09 : 237,756.78 = 100,659.39 : x
  2. Step 2: Convert to fraction form
    172,320.09/237,756.78 = 100,659.39/x
  3. Step 3: Cross multiply
    172,320.09x = 237,756.78 × 100,659.39
  4. Step 4: Simplify right side
    172,320.09x = 23,932,452,443.16
  5. Step 5: Solve for x
    x = 23,932,452,443.16/172,320.09
  6. Step 6: Final answer
    x = 138,883.70

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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.