Home / 103,354.53-142,644.85-63,091.73

Finding the Fourth Proportional to 103,354.53, 142,644.85 and 63,091.73

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Solution

The fourth proportional to 103,354.53, 142,644.85 and 63,091.73 is: 87,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,354.53 : 142,644.85 = 63,091.73 : x
  2. Step 2: Convert to fraction form
    103,354.53/142,644.85 = 63,091.73/x
  3. Step 3: Cross multiply
    103,354.53x = 142,644.85 × 63,091.73
  4. Step 4: Simplify right side
    103,354.53x = 8,999,709,491.14
  5. Step 5: Solve for x
    x = 8,999,709,491.14/103,354.53
  6. Step 6: Final answer
    x = 87,076.10

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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.