Home / 151,814.70-209,522.75-88,152.51

Finding the Fourth Proportional to 151,814.70, 209,522.75 and 88,152.51

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Solution

The fourth proportional to 151,814.70, 209,522.75 and 88,152.51 is: 121,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,814.70 : 209,522.75 = 88,152.51 : x
  2. Step 2: Convert to fraction form
    151,814.70/209,522.75 = 88,152.51/x
  3. Step 3: Cross multiply
    151,814.70x = 209,522.75 × 88,152.51
  4. Step 4: Simplify right side
    151,814.70x = 18,469,956,314.60
  5. Step 5: Solve for x
    x = 18,469,956,314.60/151,814.70
  6. Step 6: Final answer
    x = 121,661.19

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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.