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Finding the Fourth Proportional to 172,298.49, 237,737.08 and 100,664.68

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Solution

The fourth proportional to 172,298.49, 237,737.08 and 100,664.68 is: 138,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,298.49 : 237,737.08 = 100,664.68 : x
  2. Step 2: Convert to fraction form
    172,298.49/237,737.08 = 100,664.68/x
  3. Step 3: Cross multiply
    172,298.49x = 237,737.08 × 100,664.68
  4. Step 4: Simplify right side
    172,298.49x = 23,931,725,939.16
  5. Step 5: Solve for x
    x = 23,931,725,939.16/172,298.49
  6. Step 6: Final answer
    x = 138,896.90

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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.