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Finding the Fourth Proportional to 229,103.95, 316,165.14 and 127,129.81

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Solution

The fourth proportional to 229,103.95, 316,165.14 and 127,129.81 is: 175,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,103.95 : 316,165.14 = 127,129.81 : x
  2. Step 2: Convert to fraction form
    229,103.95/316,165.14 = 127,129.81/x
  3. Step 3: Cross multiply
    229,103.95x = 316,165.14 × 127,129.81
  4. Step 4: Simplify right side
    229,103.95x = 40,194,014,176.82
  5. Step 5: Solve for x
    x = 40,194,014,176.82/229,103.95
  6. Step 6: Final answer
    x = 175,440.08

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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.