Home / 128,334.08-177,095.76-70,969.80

Finding the Fourth Proportional to 128,334.08, 177,095.76 and 70,969.80

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Solution

The fourth proportional to 128,334.08, 177,095.76 and 70,969.80 is: 97,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,334.08 : 177,095.76 = 70,969.80 : x
  2. Step 2: Convert to fraction form
    128,334.08/177,095.76 = 70,969.80/x
  3. Step 3: Cross multiply
    128,334.08x = 177,095.76 × 70,969.80
  4. Step 4: Simplify right side
    128,334.08x = 12,568,450,668.05
  5. Step 5: Solve for x
    x = 12,568,450,668.05/128,334.08
  6. Step 6: Final answer
    x = 97,935.41

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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.