Home / 186,987.40-258,032.64-102,087.88

Finding the Fourth Proportional to 186,987.40, 258,032.64 and 102,087.88

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Solution

The fourth proportional to 186,987.40, 258,032.64 and 102,087.88 is: 140,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,987.40 : 258,032.64 = 102,087.88 : x
  2. Step 2: Convert to fraction form
    186,987.40/258,032.64 = 102,087.88/x
  3. Step 3: Cross multiply
    186,987.40x = 258,032.64 × 102,087.88
  4. Step 4: Simplify right side
    186,987.40x = 26,342,005,188.40
  5. Step 5: Solve for x
    x = 26,342,005,188.40/186,987.40
  6. Step 6: Final answer
    x = 140,875.83

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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.