Home / 129,222.61-193,707.36-72,324.30

Finding the Fourth Proportional to 129,222.61, 193,707.36 and 72,324.30

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Solution

The fourth proportional to 129,222.61, 193,707.36 and 72,324.30 is: 108,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,222.61 : 193,707.36 = 72,324.30 : x
  2. Step 2: Convert to fraction form
    129,222.61/193,707.36 = 72,324.30/x
  3. Step 3: Cross multiply
    129,222.61x = 193,707.36 × 72,324.30
  4. Step 4: Simplify right side
    129,222.61x = 14,009,749,216.85
  5. Step 5: Solve for x
    x = 14,009,749,216.85/129,222.61
  6. Step 6: Final answer
    x = 108,415.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.