Home / 128,208.20-176,923.86-70,062.62

Finding the Fourth Proportional to 128,208.20, 176,923.86 and 70,062.62

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Solution

The fourth proportional to 128,208.20, 176,923.86 and 70,062.62 is: 96,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,208.20 : 176,923.86 = 70,062.62 : x
  2. Step 2: Convert to fraction form
    128,208.20/176,923.86 = 70,062.62/x
  3. Step 3: Cross multiply
    128,208.20x = 176,923.86 × 70,062.62
  4. Step 4: Simplify right side
    128,208.20x = 12,395,749,172.11
  5. Step 5: Solve for x
    x = 12,395,749,172.11/128,208.20
  6. Step 6: Final answer
    x = 96,684.53

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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.