Home / 187,315.26-258,497.10-102,430.50

Finding the Fourth Proportional to 187,315.26, 258,497.10 and 102,430.50

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Solution

The fourth proportional to 187,315.26, 258,497.10 and 102,430.50 is: 141,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,315.26 : 258,497.10 = 102,430.50 : x
  2. Step 2: Convert to fraction form
    187,315.26/258,497.10 = 102,430.50/x
  3. Step 3: Cross multiply
    187,315.26x = 258,497.10 × 102,430.50
  4. Step 4: Simplify right side
    187,315.26x = 26,477,987,201.55
  5. Step 5: Solve for x
    x = 26,477,987,201.55/187,315.26
  6. Step 6: Final answer
    x = 141,355.21

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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.