Home / 90,273.24-134,674.92-87,953.40

Finding the Fourth Proportional to 90,273.24, 134,674.92 and 87,953.40

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Solution

The fourth proportional to 90,273.24, 134,674.92 and 87,953.40 is: 131,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,273.24 : 134,674.92 = 87,953.40 : x
  2. Step 2: Convert to fraction form
    90,273.24/134,674.92 = 87,953.40/x
  3. Step 3: Cross multiply
    90,273.24x = 134,674.92 × 87,953.40
  4. Step 4: Simplify right side
    90,273.24x = 11,845,117,108.73
  5. Step 5: Solve for x
    x = 11,845,117,108.73/90,273.24
  6. Step 6: Final answer
    x = 131,214.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.