Home / 187,587.60-258,872.40-102,705.36

Finding the Fourth Proportional to 187,587.60, 258,872.40 and 102,705.36

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Solution

The fourth proportional to 187,587.60, 258,872.40 and 102,705.36 is: 141,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,587.60 : 258,872.40 = 102,705.36 : x
  2. Step 2: Convert to fraction form
    187,587.60/258,872.40 = 102,705.36/x
  3. Step 3: Cross multiply
    187,587.60x = 258,872.40 × 102,705.36
  4. Step 4: Simplify right side
    187,587.60x = 26,587,583,036.06
  5. Step 5: Solve for x
    x = 26,587,583,036.06/187,587.60
  6. Step 6: Final answer
    x = 141,734.22

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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.