Home / 118,660.36-178,113.58-79,491.19

Finding the Fourth Proportional to 118,660.36, 178,113.58 and 79,491.19

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Solution

The fourth proportional to 118,660.36, 178,113.58 and 79,491.19 is: 119,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,660.36 : 178,113.58 = 79,491.19 : x
  2. Step 2: Convert to fraction form
    118,660.36/178,113.58 = 79,491.19/x
  3. Step 3: Cross multiply
    118,660.36x = 178,113.58 × 79,491.19
  4. Step 4: Simplify right side
    118,660.36x = 14,158,460,429.36
  5. Step 5: Solve for x
    x = 14,158,460,429.36/118,660.36
  6. Step 6: Final answer
    x = 119,319.21

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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.