Home / 104,837.55-144,681.89-78,949.75

Finding the Fourth Proportional to 104,837.55, 144,681.89 and 78,949.75

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Solution

The fourth proportional to 104,837.55, 144,681.89 and 78,949.75 is: 108,955.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,837.55 : 144,681.89 = 78,949.75 : x
  2. Step 2: Convert to fraction form
    104,837.55/144,681.89 = 78,949.75/x
  3. Step 3: Cross multiply
    104,837.55x = 144,681.89 × 78,949.75
  4. Step 4: Simplify right side
    104,837.55x = 11,422,599,242.40
  5. Step 5: Solve for x
    x = 11,422,599,242.40/104,837.55
  6. Step 6: Final answer
    x = 108,955.23

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1.5x scale

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.