Home / 137,569.74-189,848.22-80,207.46

Finding the Fourth Proportional to 137,569.74, 189,848.22 and 80,207.46

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Solution

The fourth proportional to 137,569.74, 189,848.22 and 80,207.46 is: 110,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,569.74 : 189,848.22 = 80,207.46 : x
  2. Step 2: Convert to fraction form
    137,569.74/189,848.22 = 80,207.46/x
  3. Step 3: Cross multiply
    137,569.74x = 189,848.22 × 80,207.46
  4. Step 4: Simplify right side
    137,569.74x = 15,227,243,511.72
  5. Step 5: Solve for x
    x = 15,227,243,511.72/137,569.74
  6. Step 6: Final answer
    x = 110,687.45

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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.