Home / 152,913.75-211,020.98-85,845.75

Finding the Fourth Proportional to 152,913.75, 211,020.98 and 85,845.75

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Solution

The fourth proportional to 152,913.75, 211,020.98 and 85,845.75 is: 118,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,913.75 : 211,020.98 = 85,845.75 : x
  2. Step 2: Convert to fraction form
    152,913.75/211,020.98 = 85,845.75/x
  3. Step 3: Cross multiply
    152,913.75x = 211,020.98 × 85,845.75
  4. Step 4: Simplify right side
    152,913.75x = 18,115,253,864.61
  5. Step 5: Solve for x
    x = 18,115,253,864.61/152,913.75
  6. Step 6: Final answer
    x = 118,467.14

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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.