Home / 137,584.47-189,886.05-76,344.42

Finding the Fourth Proportional to 137,584.47, 189,886.05 and 76,344.42

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Solution

The fourth proportional to 137,584.47, 189,886.05 and 76,344.42 is: 105,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,584.47 : 189,886.05 = 76,344.42 : x
  2. Step 2: Convert to fraction form
    137,584.47/189,886.05 = 76,344.42/x
  3. Step 3: Cross multiply
    137,584.47x = 189,886.05 × 76,344.42
  4. Step 4: Simplify right side
    137,584.47x = 14,496,740,353.34
  5. Step 5: Solve for x
    x = 14,496,740,353.34/137,584.47
  6. Step 6: Final answer
    x = 105,366.11

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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.