Home / 155,756.29-214,943.79-84,136.31

Finding the Fourth Proportional to 155,756.29, 214,943.79 and 84,136.31

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Solution

The fourth proportional to 155,756.29, 214,943.79 and 84,136.31 is: 116,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,756.29 : 214,943.79 = 84,136.31 : x
  2. Step 2: Convert to fraction form
    155,756.29/214,943.79 = 84,136.31/x
  3. Step 3: Cross multiply
    155,756.29x = 214,943.79 × 84,136.31
  4. Step 4: Simplify right side
    155,756.29x = 18,084,578,603.91
  5. Step 5: Solve for x
    x = 18,084,578,603.91/155,756.29
  6. Step 6: Final answer
    x = 116,108.18

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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.