Home / 155,762.11-214,951.53-84,142.12

Finding the Fourth Proportional to 155,762.11, 214,951.53 and 84,142.12

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Solution

The fourth proportional to 155,762.11, 214,951.53 and 84,142.12 is: 116,116.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,762.11 : 214,951.53 = 84,142.12 : x
  2. Step 2: Convert to fraction form
    155,762.11/214,951.53 = 84,142.12/x
  3. Step 3: Cross multiply
    155,762.11x = 214,951.53 × 84,142.12
  4. Step 4: Simplify right side
    155,762.11x = 18,086,477,431.44
  5. Step 5: Solve for x
    x = 18,086,477,431.44/155,762.11
  6. Step 6: Final answer
    x = 116,116.03

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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.