Home / 187,792.36-259,153.68-102,909.64

Finding the Fourth Proportional to 187,792.36, 259,153.68 and 102,909.64

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Solution

The fourth proportional to 187,792.36, 259,153.68 and 102,909.64 is: 142,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,792.36 : 259,153.68 = 102,909.64 : x
  2. Step 2: Convert to fraction form
    187,792.36/259,153.68 = 102,909.64/x
  3. Step 3: Cross multiply
    187,792.36x = 259,153.68 × 102,909.64
  4. Step 4: Simplify right side
    187,792.36x = 26,669,411,913.48
  5. Step 5: Solve for x
    x = 26,669,411,913.48/187,792.36
  6. Step 6: Final answer
    x = 142,015.43

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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.