Home / 105,528.64-158,204.40-72,167.44

Finding the Fourth Proportional to 105,528.64, 158,204.40 and 72,167.44

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Solution

The fourth proportional to 105,528.64, 158,204.40 and 72,167.44 is: 108,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,528.64 : 158,204.40 = 72,167.44 : x
  2. Step 2: Convert to fraction form
    105,528.64/158,204.40 = 72,167.44/x
  3. Step 3: Cross multiply
    105,528.64x = 158,204.40 × 72,167.44
  4. Step 4: Simplify right side
    105,528.64x = 11,417,206,544.74
  5. Step 5: Solve for x
    x = 11,417,206,544.74/105,528.64
  6. Step 6: Final answer
    x = 108,190.60

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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.