Home / 155,786.49-214,985.37-84,166.52

Finding the Fourth Proportional to 155,786.49, 214,985.37 and 84,166.52

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Solution

The fourth proportional to 155,786.49, 214,985.37 and 84,166.52 is: 116,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,786.49 : 214,985.37 = 84,166.52 : x
  2. Step 2: Convert to fraction form
    155,786.49/214,985.37 = 84,166.52/x
  3. Step 3: Cross multiply
    155,786.49x = 214,985.37 × 84,166.52
  4. Step 4: Simplify right side
    155,786.49x = 18,094,569,368.89
  5. Step 5: Solve for x
    x = 18,094,569,368.89/155,786.49
  6. Step 6: Final answer
    x = 116,149.80

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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.