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Finding the Fourth Proportional to 127,304.70, 175,607.40 and 79,475.01

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Solution

The fourth proportional to 127,304.70, 175,607.40 and 79,475.01 is: 109,629.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,304.70 : 175,607.40 = 79,475.01 : x
  2. Step 2: Convert to fraction form
    127,304.70/175,607.40 = 79,475.01/x
  3. Step 3: Cross multiply
    127,304.70x = 175,607.40 × 79,475.01
  4. Step 4: Simplify right side
    127,304.70x = 13,956,399,871.07
  5. Step 5: Solve for x
    x = 13,956,399,871.07/127,304.70
  6. Step 6: Final answer
    x = 109,629.89

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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.