Home / 103,452.58-142,777.75-63,157.71

Finding the Fourth Proportional to 103,452.58, 142,777.75 and 63,157.71

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Solution

The fourth proportional to 103,452.58, 142,777.75 and 63,157.71 is: 87,165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,452.58 : 142,777.75 = 63,157.71 : x
  2. Step 2: Convert to fraction form
    103,452.58/142,777.75 = 63,157.71/x
  3. Step 3: Cross multiply
    103,452.58x = 142,777.75 × 63,157.71
  4. Step 4: Simplify right side
    103,452.58x = 9,017,515,728.95
  5. Step 5: Solve for x
    x = 9,017,515,728.95/103,452.58
  6. Step 6: Final answer
    x = 87,165.69

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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.