Home / 105,093.06-145,031.91-57,349.02

Finding the Fourth Proportional to 105,093.06, 145,031.91 and 57,349.02

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Solution

The fourth proportional to 105,093.06, 145,031.91 and 57,349.02 is: 79,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,093.06 : 145,031.91 = 57,349.02 : x
  2. Step 2: Convert to fraction form
    105,093.06/145,031.91 = 57,349.02/x
  3. Step 3: Cross multiply
    105,093.06x = 145,031.91 × 57,349.02
  4. Step 4: Simplify right side
    105,093.06x = 8,317,437,907.23
  5. Step 5: Solve for x
    x = 8,317,437,907.23/105,093.06
  6. Step 6: Final answer
    x = 79,143.55

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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.