Home / 187,659.75-258,970.47-102,779.85

Finding the Fourth Proportional to 187,659.75, 258,970.47 and 102,779.85

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Solution

The fourth proportional to 187,659.75, 258,970.47 and 102,779.85 is: 141,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,659.75 : 258,970.47 = 102,779.85 : x
  2. Step 2: Convert to fraction form
    187,659.75/258,970.47 = 102,779.85/x
  3. Step 3: Cross multiply
    187,659.75x = 258,970.47 × 102,779.85
  4. Step 4: Simplify right side
    187,659.75x = 26,616,946,061.03
  5. Step 5: Solve for x
    x = 26,616,946,061.03/187,659.75
  6. Step 6: Final answer
    x = 141,836.20

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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.