Home / 187,396.12-258,605.87-101,355.20

Finding the Fourth Proportional to 187,396.12, 258,605.87 and 101,355.20

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Solution

The fourth proportional to 187,396.12, 258,605.87 and 101,355.20 is: 139,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,396.12 : 258,605.87 = 101,355.20 : x
  2. Step 2: Convert to fraction form
    187,396.12/258,605.87 = 101,355.20/x
  3. Step 3: Cross multiply
    187,396.12x = 258,605.87 × 101,355.20
  4. Step 4: Simplify right side
    187,396.12x = 26,211,047,875.22
  5. Step 5: Solve for x
    x = 26,211,047,875.22/187,396.12
  6. Step 6: Final answer
    x = 139,869.75

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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.