Home / 113,836.26-157,107.81-64,789.80

Finding the Fourth Proportional to 113,836.26, 157,107.81 and 64,789.80

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Solution

The fourth proportional to 113,836.26, 157,107.81 and 64,789.80 is: 89,417.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,836.26 : 157,107.81 = 64,789.80 : x
  2. Step 2: Convert to fraction form
    113,836.26/157,107.81 = 64,789.80/x
  3. Step 3: Cross multiply
    113,836.26x = 157,107.81 × 64,789.80
  4. Step 4: Simplify right side
    113,836.26x = 10,178,984,518.65
  5. Step 5: Solve for x
    x = 10,178,984,518.65/113,836.26
  6. Step 6: Final answer
    x = 89,417.77

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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.