Home / 213,727.58-320,655.56-63,972.76

Finding the Fourth Proportional to 213,727.58, 320,655.56 and 63,972.76

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Solution

The fourth proportional to 213,727.58, 320,655.56 and 63,972.76 is: 95,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,727.58 : 320,655.56 = 63,972.76 : x
  2. Step 2: Convert to fraction form
    213,727.58/320,655.56 = 63,972.76/x
  3. Step 3: Cross multiply
    213,727.58x = 320,655.56 × 63,972.76
  4. Step 4: Simplify right side
    213,727.58x = 20,513,221,182.55
  5. Step 5: Solve for x
    x = 20,513,221,182.55/213,727.58
  6. Step 6: Final answer
    x = 95,978.35

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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.