Home / 172,298.28-237,736.77-100,664.46

Finding the Fourth Proportional to 172,298.28, 237,736.77 and 100,664.46

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Solution

The fourth proportional to 172,298.28, 237,736.77 and 100,664.46 is: 138,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,298.28 : 237,736.77 = 100,664.46 : x
  2. Step 2: Convert to fraction form
    172,298.28/237,736.77 = 100,664.46/x
  3. Step 3: Cross multiply
    172,298.28x = 237,736.77 × 100,664.46
  4. Step 4: Simplify right side
    172,298.28x = 23,931,643,574.19
  5. Step 5: Solve for x
    x = 23,931,643,574.19/172,298.28
  6. Step 6: Final answer
    x = 138,896.59

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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.