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Finding the Fourth Proportional to 145,592.44, 218,424.92 and 115,719.40

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Solution

The fourth proportional to 145,592.44, 218,424.92 and 115,719.40 is: 173,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,592.44 : 218,424.92 = 115,719.40 : x
  2. Step 2: Convert to fraction form
    145,592.44/218,424.92 = 115,719.40/x
  3. Step 3: Cross multiply
    145,592.44x = 218,424.92 × 115,719.40
  4. Step 4: Simplify right side
    145,592.44x = 25,276,000,687.45
  5. Step 5: Solve for x
    x = 25,276,000,687.45/145,592.44
  6. Step 6: Final answer
    x = 173,607.92

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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.