Home / 88,147.88-121,603.38-52,317.56

Finding the Fourth Proportional to 88,147.88, 121,603.38 and 52,317.56

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Solution

The fourth proportional to 88,147.88, 121,603.38 and 52,317.56 is: 72,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,147.88 : 121,603.38 = 52,317.56 : x
  2. Step 2: Convert to fraction form
    88,147.88/121,603.38 = 52,317.56/x
  3. Step 3: Cross multiply
    88,147.88x = 121,603.38 × 52,317.56
  4. Step 4: Simplify right side
    88,147.88x = 6,361,992,129.35
  5. Step 5: Solve for x
    x = 6,361,992,129.35/88,147.88
  6. Step 6: Final answer
    x = 72,174.08

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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.