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Finding the Fourth Proportional to 172,765.40, 238,334.76 and 101,101.07

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Solution

The fourth proportional to 172,765.40, 238,334.76 and 101,101.07 is: 139,471.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,765.40 : 238,334.76 = 101,101.07 : x
  2. Step 2: Convert to fraction form
    172,765.40/238,334.76 = 101,101.07/x
  3. Step 3: Cross multiply
    172,765.40x = 238,334.76 × 101,101.07
  4. Step 4: Simplify right side
    172,765.40x = 24,095,899,254.19
  5. Step 5: Solve for x
    x = 24,095,899,254.19/172,765.40
  6. Step 6: Final answer
    x = 139,471.79

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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.