Home / 149,121.06-223,684.02-78,855.18

Finding the Fourth Proportional to 149,121.06, 223,684.02 and 78,855.18

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Solution

The fourth proportional to 149,121.06, 223,684.02 and 78,855.18 is: 118,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,121.06 : 223,684.02 = 78,855.18 : x
  2. Step 2: Convert to fraction form
    149,121.06/223,684.02 = 78,855.18/x
  3. Step 3: Cross multiply
    149,121.06x = 223,684.02 × 78,855.18
  4. Step 4: Simplify right side
    149,121.06x = 17,638,643,660.22
  5. Step 5: Solve for x
    x = 17,638,643,660.22/149,121.06
  6. Step 6: Final answer
    x = 118,284.05

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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.