Home / 142,296.28-213,436.70-72,173.76

Finding the Fourth Proportional to 142,296.28, 213,436.70 and 72,173.76

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Solution

The fourth proportional to 142,296.28, 213,436.70 and 72,173.76 is: 108,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,296.28 : 213,436.70 = 72,173.76 : x
  2. Step 2: Convert to fraction form
    142,296.28/213,436.70 = 72,173.76/x
  3. Step 3: Cross multiply
    142,296.28x = 213,436.70 × 72,173.76
  4. Step 4: Simplify right side
    142,296.28x = 15,404,529,160.99
  5. Step 5: Solve for x
    x = 15,404,529,160.99/142,296.28
  6. Step 6: Final answer
    x = 108,256.72

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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.