Home / 161,008.46-242,670.00-138,787.35

Finding the Fourth Proportional to 161,008.46, 242,670.00 and 138,787.35

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Solution

The fourth proportional to 161,008.46, 242,670.00 and 138,787.35 is: 209,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,008.46 : 242,670.00 = 138,787.35 : x
  2. Step 2: Convert to fraction form
    161,008.46/242,670.00 = 138,787.35/x
  3. Step 3: Cross multiply
    161,008.46x = 242,670.00 × 138,787.35
  4. Step 4: Simplify right side
    161,008.46x = 33,679,525,834.94
  5. Step 5: Solve for x
    x = 33,679,525,834.94/161,008.46
  6. Step 6: Final answer
    x = 209,178.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.