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Finding the Fourth Proportional to 187,395.42, 258,605.69 and 101,354.42

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Solution

The fourth proportional to 187,395.42, 258,605.69 and 101,354.42 is: 139,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,395.42 : 258,605.69 = 101,354.42 : x
  2. Step 2: Convert to fraction form
    187,395.42/258,605.69 = 101,354.42/x
  3. Step 3: Cross multiply
    187,395.42x = 258,605.69 × 101,354.42
  4. Step 4: Simplify right side
    187,395.42x = 26,210,827,918.85
  5. Step 5: Solve for x
    x = 26,210,827,918.85/187,395.42
  6. Step 6: Final answer
    x = 139,869.10

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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.