Home / 109,071.07-163,439.60-73,400.15

Finding the Fourth Proportional to 109,071.07, 163,439.60 and 73,400.15

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Solution

The fourth proportional to 109,071.07, 163,439.60 and 73,400.15 is: 109,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,071.07 : 163,439.60 = 73,400.15 : x
  2. Step 2: Convert to fraction form
    109,071.07/163,439.60 = 73,400.15/x
  3. Step 3: Cross multiply
    109,071.07x = 163,439.60 × 73,400.15
  4. Step 4: Simplify right side
    109,071.07x = 11,996,491,155.94
  5. Step 5: Solve for x
    x = 11,996,491,155.94/109,071.07
  6. Step 6: Final answer
    x = 109,987.84

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1.5x scale

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.