Home / 114,938.60-158,525.28-78,661.52

Finding the Fourth Proportional to 114,938.60, 158,525.28 and 78,661.52

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Solution

The fourth proportional to 114,938.60, 158,525.28 and 78,661.52 is: 108,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,938.60 : 158,525.28 = 78,661.52 : x
  2. Step 2: Convert to fraction form
    114,938.60/158,525.28 = 78,661.52/x
  3. Step 3: Cross multiply
    114,938.60x = 158,525.28 × 78,661.52
  4. Step 4: Simplify right side
    114,938.60x = 12,469,839,483.23
  5. Step 5: Solve for x
    x = 12,469,839,483.23/114,938.60
  6. Step 6: Final answer
    x = 108,491.31

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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.