Home / 137,994.90-190,438.37-77,565.36

Finding the Fourth Proportional to 137,994.90, 190,438.37 and 77,565.36

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Solution

The fourth proportional to 137,994.90, 190,438.37 and 77,565.36 is: 107,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,994.90 : 190,438.37 = 77,565.36 : x
  2. Step 2: Convert to fraction form
    137,994.90/190,438.37 = 77,565.36/x
  3. Step 3: Cross multiply
    137,994.90x = 190,438.37 × 77,565.36
  4. Step 4: Simplify right side
    137,994.90x = 14,771,420,339.04
  5. Step 5: Solve for x
    x = 14,771,420,339.04/137,994.90
  6. Step 6: Final answer
    x = 107,043.23

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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.