Home / 213,726.02-320,500.37-78,797.76

Finding the Fourth Proportional to 213,726.02, 320,500.37 and 78,797.76

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Solution

The fourth proportional to 213,726.02, 320,500.37 and 78,797.76 is: 118,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,726.02 : 320,500.37 = 78,797.76 : x
  2. Step 2: Convert to fraction form
    213,726.02/320,500.37 = 78,797.76/x
  3. Step 3: Cross multiply
    213,726.02x = 320,500.37 × 78,797.76
  4. Step 4: Simplify right side
    213,726.02x = 25,254,711,811.49
  5. Step 5: Solve for x
    x = 25,254,711,811.49/213,726.02
  6. Step 6: Final answer
    x = 118,163.96

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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.