Home / 130,606.32-180,238.86-74,016.48

Finding the Fourth Proportional to 130,606.32, 180,238.86 and 74,016.48

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Solution

The fourth proportional to 130,606.32, 180,238.86 and 74,016.48 is: 102,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,606.32 : 180,238.86 = 74,016.48 : x
  2. Step 2: Convert to fraction form
    130,606.32/180,238.86 = 74,016.48/x
  3. Step 3: Cross multiply
    130,606.32x = 180,238.86 × 74,016.48
  4. Step 4: Simplify right side
    130,606.32x = 13,340,645,976.41
  5. Step 5: Solve for x
    x = 13,340,645,976.41/130,606.32
  6. Step 6: Final answer
    x = 102,143.95

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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.