Home / 128,218.14-176,941.57-70,076.04

Finding the Fourth Proportional to 128,218.14, 176,941.57 and 70,076.04

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Solution

The fourth proportional to 128,218.14, 176,941.57 and 70,076.04 is: 96,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,218.14 : 176,941.57 = 70,076.04 : x
  2. Step 2: Convert to fraction form
    128,218.14/176,941.57 = 70,076.04/x
  3. Step 3: Cross multiply
    128,218.14x = 176,941.57 × 70,076.04
  4. Step 4: Simplify right side
    128,218.14x = 12,399,365,519.69
  5. Step 5: Solve for x
    x = 12,399,365,519.69/128,218.14
  6. Step 6: Final answer
    x = 96,705.24

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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.