Home / 130,339.72-179,863.83-72,973.67

Finding the Fourth Proportional to 130,339.72, 179,863.83 and 72,973.67

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Solution

The fourth proportional to 130,339.72, 179,863.83 and 72,973.67 is: 100,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,339.72 : 179,863.83 = 72,973.67 : x
  2. Step 2: Convert to fraction form
    130,339.72/179,863.83 = 72,973.67/x
  3. Step 3: Cross multiply
    130,339.72x = 179,863.83 × 72,973.67
  4. Step 4: Simplify right side
    130,339.72x = 13,125,324,630.67
  5. Step 5: Solve for x
    x = 13,125,324,630.67/130,339.72
  6. Step 6: Final answer
    x = 100,700.88

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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.