Home / 155,982.48-215,255.84-84,362.49

Finding the Fourth Proportional to 155,982.48, 215,255.84 and 84,362.49

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Solution

The fourth proportional to 155,982.48, 215,255.84 and 84,362.49 is: 116,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,982.48 : 215,255.84 = 84,362.49 : x
  2. Step 2: Convert to fraction form
    155,982.48/215,255.84 = 84,362.49/x
  3. Step 3: Cross multiply
    155,982.48x = 215,255.84 × 84,362.49
  4. Step 4: Simplify right side
    155,982.48x = 18,159,517,151.35
  5. Step 5: Solve for x
    x = 18,159,517,151.35/155,982.48
  6. Step 6: Final answer
    x = 116,420.24

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1.5x scale

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.