Home / 149,217.16-205,939.36-85,542.64

Finding the Fourth Proportional to 149,217.16, 205,939.36 and 85,542.64

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Solution

The fourth proportional to 149,217.16, 205,939.36 and 85,542.64 is: 118,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,217.16 : 205,939.36 = 85,542.64 : x
  2. Step 2: Convert to fraction form
    149,217.16/205,939.36 = 85,542.64/x
  3. Step 3: Cross multiply
    149,217.16x = 205,939.36 × 85,542.64
  4. Step 4: Simplify right side
    149,217.16x = 17,616,596,534.31
  5. Step 5: Solve for x
    x = 17,616,596,534.31/149,217.16
  6. Step 6: Final answer
    x = 118,060.12

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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.