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Finding the Fourth Proportional to 117,440.64, 176,189.76 and 55,038.40

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Solution

The fourth proportional to 117,440.64, 176,189.76 and 55,038.40 is: 82,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,440.64 : 176,189.76 = 55,038.40 : x
  2. Step 2: Convert to fraction form
    117,440.64/176,189.76 = 55,038.40/x
  3. Step 3: Cross multiply
    117,440.64x = 176,189.76 × 55,038.40
  4. Step 4: Simplify right side
    117,440.64x = 9,697,202,486.78
  5. Step 5: Solve for x
    x = 9,697,202,486.78/117,440.64
  6. Step 6: Final answer
    x = 82,571.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.