Home / 187,664.31-258,967.13-102,779.55

Finding the Fourth Proportional to 187,664.31, 258,967.13 and 102,779.55

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Solution

The fourth proportional to 187,664.31, 258,967.13 and 102,779.55 is: 141,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,664.31 : 258,967.13 = 102,779.55 : x
  2. Step 2: Convert to fraction form
    187,664.31/258,967.13 = 102,779.55/x
  3. Step 3: Cross multiply
    187,664.31x = 258,967.13 × 102,779.55
  4. Step 4: Simplify right side
    187,664.31x = 26,616,524,572.29
  5. Step 5: Solve for x
    x = 26,616,524,572.29/187,664.31
  6. Step 6: Final answer
    x = 141,830.51

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1.5x scale

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.