Home / 213,437.28-320,055.44-124,716.40

Finding the Fourth Proportional to 213,437.28, 320,055.44 and 124,716.40

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Solution

The fourth proportional to 213,437.28, 320,055.44 and 124,716.40 is: 187,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,437.28 : 320,055.44 = 124,716.40 : x
  2. Step 2: Convert to fraction form
    213,437.28/320,055.44 = 124,716.40/x
  3. Step 3: Cross multiply
    213,437.28x = 320,055.44 × 124,716.40
  4. Step 4: Simplify right side
    213,437.28x = 39,916,162,277.22
  5. Step 5: Solve for x
    x = 39,916,162,277.22/213,437.28
  6. Step 6: Final answer
    x = 187,015.89

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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.