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Finding the Fourth Proportional to 130.04, 193.56 and 129.35

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Solution

The fourth proportional to 130.04, 193.56 and 129.35 is: 192.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.04 : 193.56 = 129.35 : x
  2. Step 2: Convert to fraction form
    130.04/193.56 = 129.35/x
  3. Step 3: Cross multiply
    130.04x = 193.56 × 129.35
  4. Step 4: Simplify right side
    130.04x = 25,036.02
  5. Step 5: Solve for x
    x = 25,036.02/130.04
  6. Step 6: Final answer
    x = 192.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.