Home / 105,028.86-144,938.06-57,279.36

Finding the Fourth Proportional to 105,028.86, 144,938.06 and 57,279.36

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Solution

The fourth proportional to 105,028.86, 144,938.06 and 57,279.36 is: 79,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,028.86 : 144,938.06 = 57,279.36 : x
  2. Step 2: Convert to fraction form
    105,028.86/144,938.06 = 57,279.36/x
  3. Step 3: Cross multiply
    105,028.86x = 144,938.06 × 57,279.36
  4. Step 4: Simplify right side
    105,028.86x = 8,301,959,316.44
  5. Step 5: Solve for x
    x = 8,301,959,316.44/105,028.86
  6. Step 6: Final answer
    x = 79,044.55

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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.