Home / 137,984.08-190,418.57-77,557.27

Finding the Fourth Proportional to 137,984.08, 190,418.57 and 77,557.27

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Solution

The fourth proportional to 137,984.08, 190,418.57 and 77,557.27 is: 107,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,984.08 : 190,418.57 = 77,557.27 : x
  2. Step 2: Convert to fraction form
    137,984.08/190,418.57 = 77,557.27/x
  3. Step 3: Cross multiply
    137,984.08x = 190,418.57 × 77,557.27
  4. Step 4: Simplify right side
    137,984.08x = 14,768,344,446.50
  5. Step 5: Solve for x
    x = 14,768,344,446.50/137,984.08
  6. Step 6: Final answer
    x = 107,029.34

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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.