Home / 105,474.30-145,531.98-62,467.28

Finding the Fourth Proportional to 105,474.30, 145,531.98 and 62,467.28

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Solution

The fourth proportional to 105,474.30, 145,531.98 and 62,467.28 is: 86,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,474.30 : 145,531.98 = 62,467.28 : x
  2. Step 2: Convert to fraction form
    105,474.30/145,531.98 = 62,467.28/x
  3. Step 3: Cross multiply
    105,474.30x = 145,531.98 × 62,467.28
  4. Step 4: Simplify right side
    105,474.30x = 9,090,986,943.61
  5. Step 5: Solve for x
    x = 9,090,986,943.61/105,474.30
  6. Step 6: Final answer
    x = 86,191.49

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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.