Home / 127,786.75-176,346.91-70,428.12

Finding the Fourth Proportional to 127,786.75, 176,346.91 and 70,428.12

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Solution

The fourth proportional to 127,786.75, 176,346.91 and 70,428.12 is: 97,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,786.75 : 176,346.91 = 70,428.12 : x
  2. Step 2: Convert to fraction form
    127,786.75/176,346.91 = 70,428.12/x
  3. Step 3: Cross multiply
    127,786.75x = 176,346.91 × 70,428.12
  4. Step 4: Simplify right side
    127,786.75x = 12,419,781,339.11
  5. Step 5: Solve for x
    x = 12,419,781,339.11/127,786.75
  6. Step 6: Final answer
    x = 97,191.46

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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.