Home / 128,087.06-176,760.63-70,725.42

Finding the Fourth Proportional to 128,087.06, 176,760.63 and 70,725.42

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Solution

The fourth proportional to 128,087.06, 176,760.63 and 70,725.42 is: 97,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,087.06 : 176,760.63 = 70,725.42 : x
  2. Step 2: Convert to fraction form
    128,087.06/176,760.63 = 70,725.42/x
  3. Step 3: Cross multiply
    128,087.06x = 176,760.63 × 70,725.42
  4. Step 4: Simplify right side
    128,087.06x = 12,501,469,796.21
  5. Step 5: Solve for x
    x = 12,501,469,796.21/128,087.06
  6. Step 6: Final answer
    x = 97,601.35

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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.