Home / 155,943.60-215,202.01-84,323.45

Finding the Fourth Proportional to 155,943.60, 215,202.01 and 84,323.45

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Solution

The fourth proportional to 155,943.60, 215,202.01 and 84,323.45 is: 116,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,943.60 : 215,202.01 = 84,323.45 : x
  2. Step 2: Convert to fraction form
    155,943.60/215,202.01 = 84,323.45/x
  3. Step 3: Cross multiply
    155,943.60x = 215,202.01 × 84,323.45
  4. Step 4: Simplify right side
    155,943.60x = 18,146,575,930.13
  5. Step 5: Solve for x
    x = 18,146,575,930.13/155,943.60
  6. Step 6: Final answer
    x = 116,366.28

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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.