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Finding the Fourth Proportional to 172,386.30, 237,857.54 and 100,752.33

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Solution

The fourth proportional to 172,386.30, 237,857.54 and 100,752.33 is: 139,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,386.30 : 237,857.54 = 100,752.33 : x
  2. Step 2: Convert to fraction form
    172,386.30/237,857.54 = 100,752.33/x
  3. Step 3: Cross multiply
    172,386.30x = 237,857.54 × 100,752.33
  4. Step 4: Simplify right side
    172,386.30x = 23,964,700,859.31
  5. Step 5: Solve for x
    x = 23,964,700,859.31/172,386.30
  6. Step 6: Final answer
    x = 139,017.43

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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.