Home / 188,638.18-283,032.88-68,703.48

Finding the Fourth Proportional to 188,638.18, 283,032.88 and 68,703.48

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Solution

The fourth proportional to 188,638.18, 283,032.88 and 68,703.48 is: 103,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,638.18 : 283,032.88 = 68,703.48 : x
  2. Step 2: Convert to fraction form
    188,638.18/283,032.88 = 68,703.48/x
  3. Step 3: Cross multiply
    188,638.18x = 283,032.88 × 68,703.48
  4. Step 4: Simplify right side
    188,638.18x = 19,445,343,810.42
  5. Step 5: Solve for x
    x = 19,445,343,810.42/188,638.18
  6. Step 6: Final answer
    x = 103,082.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.