Home / 137,810.32-190,207.86-84,083.80

Finding the Fourth Proportional to 137,810.32, 190,207.86 and 84,083.80

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Solution

The fourth proportional to 137,810.32, 190,207.86 and 84,083.80 is: 116,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,810.32 : 190,207.86 = 84,083.80 : x
  2. Step 2: Convert to fraction form
    137,810.32/190,207.86 = 84,083.80/x
  3. Step 3: Cross multiply
    137,810.32x = 190,207.86 × 84,083.80
  4. Step 4: Simplify right side
    137,810.32x = 15,993,399,658.67
  5. Step 5: Solve for x
    x = 15,993,399,658.67/137,810.32
  6. Step 6: Final answer
    x = 116,053.72

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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.