Home / 152,136.90-209,932.77-84,143.07

Finding the Fourth Proportional to 152,136.90, 209,932.77 and 84,143.07

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Solution

The fourth proportional to 152,136.90, 209,932.77 and 84,143.07 is: 116,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,136.90 : 209,932.77 = 84,143.07 : x
  2. Step 2: Convert to fraction form
    152,136.90/209,932.77 = 84,143.07/x
  3. Step 3: Cross multiply
    152,136.90x = 209,932.77 × 84,143.07
  4. Step 4: Simplify right side
    152,136.90x = 17,664,388,864.19
  5. Step 5: Solve for x
    x = 17,664,388,864.19/152,136.90
  6. Step 6: Final answer
    x = 116,108.51

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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.