Home / 128,694.04-177,597.47-70,550.67

Finding the Fourth Proportional to 128,694.04, 177,597.47 and 70,550.67

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Solution

The fourth proportional to 128,694.04, 177,597.47 and 70,550.67 is: 97,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,694.04 : 177,597.47 = 70,550.67 : x
  2. Step 2: Convert to fraction form
    128,694.04/177,597.47 = 70,550.67/x
  3. Step 3: Cross multiply
    128,694.04x = 177,597.47 × 70,550.67
  4. Step 4: Simplify right side
    128,694.04x = 12,529,620,743.61
  5. Step 5: Solve for x
    x = 12,529,620,743.61/128,694.04
  6. Step 6: Final answer
    x = 97,359.76

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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.