Home / 258,085.48-356,167.95-143,372.81

Finding the Fourth Proportional to 258,085.48, 356,167.95 and 143,372.81

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Solution

The fourth proportional to 258,085.48, 356,167.95 and 143,372.81 is: 197,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,085.48 : 356,167.95 = 143,372.81 : x
  2. Step 2: Convert to fraction form
    258,085.48/356,167.95 = 143,372.81/x
  3. Step 3: Cross multiply
    258,085.48x = 356,167.95 × 143,372.81
  4. Step 4: Simplify right side
    258,085.48x = 51,064,799,376.11
  5. Step 5: Solve for x
    x = 51,064,799,376.11/258,085.48
  6. Step 6: Final answer
    x = 197,860.03

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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.