Home / 137,889.12-190,281.96-84,263.88

Finding the Fourth Proportional to 137,889.12, 190,281.96 and 84,263.88

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Solution

The fourth proportional to 137,889.12, 190,281.96 and 84,263.88 is: 116,281.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,889.12 : 190,281.96 = 84,263.88 : x
  2. Step 2: Convert to fraction form
    137,889.12/190,281.96 = 84,263.88/x
  3. Step 3: Cross multiply
    137,889.12x = 190,281.96 × 84,263.88
  4. Step 4: Simplify right side
    137,889.12x = 16,033,896,243.60
  5. Step 5: Solve for x
    x = 16,033,896,243.60/137,889.12
  6. Step 6: Final answer
    x = 116,281.08

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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.