Home / 89,690.07-134,535.27-84,209.59

Finding the Fourth Proportional to 89,690.07, 134,535.27 and 84,209.59

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Solution

The fourth proportional to 89,690.07, 134,535.27 and 84,209.59 is: 126,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,690.07 : 134,535.27 = 84,209.59 : x
  2. Step 2: Convert to fraction form
    89,690.07/134,535.27 = 84,209.59/x
  3. Step 3: Cross multiply
    89,690.07x = 134,535.27 × 84,209.59
  4. Step 4: Simplify right side
    89,690.07x = 11,329,160,411.19
  5. Step 5: Solve for x
    x = 11,329,160,411.19/89,690.07
  6. Step 6: Final answer
    x = 126,314.54

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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.