Home / 146,731.40-202,486.02-86,290.28

Finding the Fourth Proportional to 146,731.40, 202,486.02 and 86,290.28

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Solution

The fourth proportional to 146,731.40, 202,486.02 and 86,290.28 is: 119,078.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,731.40 : 202,486.02 = 86,290.28 : x
  2. Step 2: Convert to fraction form
    146,731.40/202,486.02 = 86,290.28/x
  3. Step 3: Cross multiply
    146,731.40x = 202,486.02 × 86,290.28
  4. Step 4: Simplify right side
    146,731.40x = 17,472,575,361.89
  5. Step 5: Solve for x
    x = 17,472,575,361.89/146,731.40
  6. Step 6: Final answer
    x = 119,078.64

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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.