Home / 137,987.93-190,440.95-84,261.64

Finding the Fourth Proportional to 137,987.93, 190,440.95 and 84,261.64

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Solution

The fourth proportional to 137,987.93, 190,440.95 and 84,261.64 is: 116,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,987.93 : 190,440.95 = 84,261.64 : x
  2. Step 2: Convert to fraction form
    137,987.93/190,440.95 = 84,261.64/x
  3. Step 3: Cross multiply
    137,987.93x = 190,440.95 × 84,261.64
  4. Step 4: Simplify right side
    137,987.93x = 16,046,866,770.16
  5. Step 5: Solve for x
    x = 16,046,866,770.16/137,987.93
  6. Step 6: Final answer
    x = 116,291.81

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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.