Home / 130,370.13-179,910.78-70,754.13

Finding the Fourth Proportional to 130,370.13, 179,910.78 and 70,754.13

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Solution

The fourth proportional to 130,370.13, 179,910.78 and 70,754.13 is: 97,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,370.13 : 179,910.78 = 70,754.13 : x
  2. Step 2: Convert to fraction form
    130,370.13/179,910.78 = 70,754.13/x
  3. Step 3: Cross multiply
    130,370.13x = 179,910.78 × 70,754.13
  4. Step 4: Simplify right side
    130,370.13x = 12,729,430,716.52
  5. Step 5: Solve for x
    x = 12,729,430,716.52/130,370.13
  6. Step 6: Final answer
    x = 97,640.70

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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.