Home / 104,877.40-144,725.78-57,130.60

Finding the Fourth Proportional to 104,877.40, 144,725.78 and 57,130.60

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Solution

The fourth proportional to 104,877.40, 144,725.78 and 57,130.60 is: 78,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,877.40 : 144,725.78 = 57,130.60 : x
  2. Step 2: Convert to fraction form
    104,877.40/144,725.78 = 57,130.60/x
  3. Step 3: Cross multiply
    104,877.40x = 144,725.78 × 57,130.60
  4. Step 4: Simplify right side
    104,877.40x = 8,268,270,646.87
  5. Step 5: Solve for x
    x = 8,268,270,646.87/104,877.40
  6. Step 6: Final answer
    x = 78,837.49

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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.