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Finding the Fourth Proportional to 172,510.48, 238,089.88 and 103,604.59

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Solution

The fourth proportional to 172,510.48, 238,089.88 and 103,604.59 is: 142,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,510.48 : 238,089.88 = 103,604.59 : x
  2. Step 2: Convert to fraction form
    172,510.48/238,089.88 = 103,604.59/x
  3. Step 3: Cross multiply
    172,510.48x = 238,089.88 × 103,604.59
  4. Step 4: Simplify right side
    172,510.48x = 24,667,203,488.41
  5. Step 5: Solve for x
    x = 24,667,203,488.41/172,510.48
  6. Step 6: Final answer
    x = 142,989.60

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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.