Home / 103,732.14-143,153.20-63,445.18

Finding the Fourth Proportional to 103,732.14, 143,153.20 and 63,445.18

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Solution

The fourth proportional to 103,732.14, 143,153.20 and 63,445.18 is: 87,556.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,732.14 : 143,153.20 = 63,445.18 : x
  2. Step 2: Convert to fraction form
    103,732.14/143,153.20 = 63,445.18/x
  3. Step 3: Cross multiply
    103,732.14x = 143,153.20 × 63,445.18
  4. Step 4: Simplify right side
    103,732.14x = 9,082,380,541.58
  5. Step 5: Solve for x
    x = 9,082,380,541.58/103,732.14
  6. Step 6: Final answer
    x = 87,556.09

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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.