Home / 137,945.32-190,385.10-84,261.22

Finding the Fourth Proportional to 137,945.32, 190,385.10 and 84,261.22

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Solution

The fourth proportional to 137,945.32, 190,385.10 and 84,261.22 is: 116,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,945.32 : 190,385.10 = 84,261.22 : x
  2. Step 2: Convert to fraction form
    137,945.32/190,385.10 = 84,261.22/x
  3. Step 3: Cross multiply
    137,945.32x = 190,385.10 × 84,261.22
  4. Step 4: Simplify right side
    137,945.32x = 16,042,080,795.82
  5. Step 5: Solve for x
    x = 16,042,080,795.82/137,945.32
  6. Step 6: Final answer
    x = 116,293.04

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1.5x scale

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.