Home / 187,173.89-258,301.00-105,503.41

Finding the Fourth Proportional to 187,173.89, 258,301.00 and 105,503.41

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Solution

The fourth proportional to 187,173.89, 258,301.00 and 105,503.41 is: 145,595.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,173.89 : 258,301.00 = 105,503.41 : x
  2. Step 2: Convert to fraction form
    187,173.89/258,301.00 = 105,503.41/x
  3. Step 3: Cross multiply
    187,173.89x = 258,301.00 × 105,503.41
  4. Step 4: Simplify right side
    187,173.89x = 27,251,636,761.17
  5. Step 5: Solve for x
    x = 27,251,636,761.17/187,173.89
  6. Step 6: Final answer
    x = 145,595.29

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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.