Home / 104,934.78-144,805.77-57,187.10

Finding the Fourth Proportional to 104,934.78, 144,805.77 and 57,187.10

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Solution

The fourth proportional to 104,934.78, 144,805.77 and 57,187.10 is: 78,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,934.78 : 144,805.77 = 57,187.10 : x
  2. Step 2: Convert to fraction form
    104,934.78/144,805.77 = 57,187.10/x
  3. Step 3: Cross multiply
    104,934.78x = 144,805.77 × 57,187.10
  4. Step 4: Simplify right side
    104,934.78x = 8,281,021,325.54
  5. Step 5: Solve for x
    x = 8,281,021,325.54/104,934.78
  6. Step 6: Final answer
    x = 78,915.89

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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.