Home / 113,457.43-156,619.71-80,772.94

Finding the Fourth Proportional to 113,457.43, 156,619.71 and 80,772.94

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Solution

The fourth proportional to 113,457.43, 156,619.71 and 80,772.94 is: 111,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,457.43 : 156,619.71 = 80,772.94 : x
  2. Step 2: Convert to fraction form
    113,457.43/156,619.71 = 80,772.94/x
  3. Step 3: Cross multiply
    113,457.43x = 156,619.71 × 80,772.94
  4. Step 4: Simplify right side
    113,457.43x = 12,650,634,438.65
  5. Step 5: Solve for x
    x = 12,650,634,438.65/113,457.43
  6. Step 6: Final answer
    x = 111,501.15

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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.