Home / 152,138.28-209,934.67-84,144.45

Finding the Fourth Proportional to 152,138.28, 209,934.67 and 84,144.45

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Solution

The fourth proportional to 152,138.28, 209,934.67 and 84,144.45 is: 116,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,138.28 : 209,934.67 = 84,144.45 : x
  2. Step 2: Convert to fraction form
    152,138.28/209,934.67 = 84,144.45/x
  3. Step 3: Cross multiply
    152,138.28x = 209,934.67 × 84,144.45
  4. Step 4: Simplify right side
    152,138.28x = 17,664,837,343.08
  5. Step 5: Solve for x
    x = 17,664,837,343.08/152,138.28
  6. Step 6: Final answer
    x = 116,110.41

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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.