Home / 152,905.91-211,007.48-84,920.28

Finding the Fourth Proportional to 152,905.91, 211,007.48 and 84,920.28

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Solution

The fourth proportional to 152,905.91, 211,007.48 and 84,920.28 is: 117,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,905.91 : 211,007.48 = 84,920.28 : x
  2. Step 2: Convert to fraction form
    152,905.91/211,007.48 = 84,920.28/x
  3. Step 3: Cross multiply
    152,905.91x = 211,007.48 × 84,920.28
  4. Step 4: Simplify right side
    152,905.91x = 17,918,813,859.09
  5. Step 5: Solve for x
    x = 17,918,813,859.09/152,905.91
  6. Step 6: Final answer
    x = 117,188.50

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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.