Home / 109,509.83-151,155.88-64,197.62

Finding the Fourth Proportional to 109,509.83, 151,155.88 and 64,197.62

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Solution

The fourth proportional to 109,509.83, 151,155.88 and 64,197.62 is: 88,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.83 : 151,155.88 = 64,197.62 : x
  2. Step 2: Convert to fraction form
    109,509.83/151,155.88 = 64,197.62/x
  3. Step 3: Cross multiply
    109,509.83x = 151,155.88 × 64,197.62
  4. Step 4: Simplify right side
    109,509.83x = 9,703,847,745.01
  5. Step 5: Solve for x
    x = 9,703,847,745.01/109,509.83
  6. Step 6: Final answer
    x = 88,611.66

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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.