Home / 187,315.49-258,490.13-102,430.73

Finding the Fourth Proportional to 187,315.49, 258,490.13 and 102,430.73

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Solution

The fourth proportional to 187,315.49, 258,490.13 and 102,430.73 is: 141,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,315.49 : 258,490.13 = 102,430.73 : x
  2. Step 2: Convert to fraction form
    187,315.49/258,490.13 = 102,430.73/x
  3. Step 3: Cross multiply
    187,315.49x = 258,490.13 × 102,430.73
  4. Step 4: Simplify right side
    187,315.49x = 26,477,332,847.77
  5. Step 5: Solve for x
    x = 26,477,332,847.77/187,315.49
  6. Step 6: Final answer
    x = 141,351.54

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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.