Home / 90,376.86-134,757.27-87,894.00

Finding the Fourth Proportional to 90,376.86, 134,757.27 and 87,894.00

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Solution

The fourth proportional to 90,376.86, 134,757.27 and 87,894.00 is: 131,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,376.86 : 134,757.27 = 87,894.00 : x
  2. Step 2: Convert to fraction form
    90,376.86/134,757.27 = 87,894.00/x
  3. Step 3: Cross multiply
    90,376.86x = 134,757.27 × 87,894.00
  4. Step 4: Simplify right side
    90,376.86x = 11,844,356,324.32
  5. Step 5: Solve for x
    x = 11,844,356,324.32/90,376.86
  6. Step 6: Final answer
    x = 131,055.19

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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.