Home / 152,767.90-210,845.06-89,105.70

Finding the Fourth Proportional to 152,767.90, 210,845.06 and 89,105.70

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Solution

The fourth proportional to 152,767.90, 210,845.06 and 89,105.70 is: 122,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,767.90 : 210,845.06 = 89,105.70 : x
  2. Step 2: Convert to fraction form
    152,767.90/210,845.06 = 89,105.70/x
  3. Step 3: Cross multiply
    152,767.90x = 210,845.06 × 89,105.70
  4. Step 4: Simplify right side
    152,767.90x = 18,787,496,662.84
  5. Step 5: Solve for x
    x = 18,787,496,662.84/152,767.90
  6. Step 6: Final answer
    x = 122,980.66

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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.