Home / 137,927.40-190,319.40-79,782.36

Finding the Fourth Proportional to 137,927.40, 190,319.40 and 79,782.36

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Solution

The fourth proportional to 137,927.40, 190,319.40 and 79,782.36 is: 110,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,927.40 : 190,319.40 = 79,782.36 : x
  2. Step 2: Convert to fraction form
    137,927.40/190,319.40 = 79,782.36/x
  3. Step 3: Cross multiply
    137,927.40x = 190,319.40 × 79,782.36
  4. Step 4: Simplify right side
    137,927.40x = 15,184,130,885.78
  5. Step 5: Solve for x
    x = 15,184,130,885.78/137,927.40
  6. Step 6: Final answer
    x = 110,087.85

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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.