Home / 128,550.07-177,409.34-94,713.13

Finding the Fourth Proportional to 128,550.07, 177,409.34 and 94,713.13

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Solution

The fourth proportional to 128,550.07, 177,409.34 and 94,713.13 is: 130,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,550.07 : 177,409.34 = 94,713.13 : x
  2. Step 2: Convert to fraction form
    128,550.07/177,409.34 = 94,713.13/x
  3. Step 3: Cross multiply
    128,550.07x = 177,409.34 × 94,713.13
  4. Step 4: Simplify right side
    128,550.07x = 16,802,993,882.63
  5. Step 5: Solve for x
    x = 16,802,993,882.63/128,550.07
  6. Step 6: Final answer
    x = 130,711.67

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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.