Home / 102,286.72-141,152.64-57,573.76

Finding the Fourth Proportional to 102,286.72, 141,152.64 and 57,573.76

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Solution

The fourth proportional to 102,286.72, 141,152.64 and 57,573.76 is: 79,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,286.72 : 141,152.64 = 57,573.76 : x
  2. Step 2: Convert to fraction form
    102,286.72/141,152.64 = 57,573.76/x
  3. Step 3: Cross multiply
    102,286.72x = 141,152.64 × 57,573.76
  4. Step 4: Simplify right side
    102,286.72x = 8,126,688,218.73
  5. Step 5: Solve for x
    x = 8,126,688,218.73/102,286.72
  6. Step 6: Final answer
    x = 79,450.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.