Home / 103,055.36-142,209.60-57,725.44

Finding the Fourth Proportional to 103,055.36, 142,209.60 and 57,725.44

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Solution

The fourth proportional to 103,055.36, 142,209.60 and 57,725.44 is: 79,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,055.36 : 142,209.60 = 57,725.44 : x
  2. Step 2: Convert to fraction form
    103,055.36/142,209.60 = 57,725.44/x
  3. Step 3: Cross multiply
    103,055.36x = 142,209.60 × 57,725.44
  4. Step 4: Simplify right side
    103,055.36x = 8,209,111,732.22
  5. Step 5: Solve for x
    x = 8,209,111,732.22/103,055.36
  6. Step 6: Final answer
    x = 79,657.30

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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.